A kayak race is held each August on the South Arm of Lake Charlevoix, Charlevoix County, Michigan. The "course" starts at the public launch in East Jordan, MI and ends at the DNR launch at Dutchman's Bay, a distance of approximately two nautical miles. Participants are individual paddlers in identical Old Town sit inside Sorrento 106sk kayaks. The organizer wants to investigate if there is a relationship between the amount of experience (three categories) and minutes to complete the course. She wants to control for age. She also wants suggestions about other data that might be collected to find additional relationships (e.g. water temperature).

The data from a random sample from a recent year's event is provided below:

KAYAK RACE DATA SET

Experience

1 = participation in 10 or more kayak events

2 = participation in 4 to 9 kayak events

3 = participation in 3 kayak events

Complete the following:

Import / post the data above to create an SPSS data file (sav)

Conduct an ANCOVA analysis

Respond to the organizers current research question

Propose two future data categories (not including example above of water temperature) and rationale for each.

A realtor studies the relationship between the size of a house (in square feet) and the property taxes (in $) owed by the owner. The table below shows a portion of the data for 20 homes in a suburb 60 miles outside of New York City. [You may find it useful to reference the t table.]

a-1. Calculate the sample correlation coefficient r_xy. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.)

a-2. Interpret r_xy.

a. The correlation coefficient indicates a positive linear relationship.

b. The correlation coefficient indicates a negative linear relationship.

c. The correlation coefficient indicates no linear relationship.

b. Specify the competing hypotheses in order to determine whether the population correlation coefficient between the size of a house and property taxes differs from zero.

a. H₀: ρ_xy = 0; H_A: ρ_xy ≠ 0

b. H₀: ρ_xy ≥ 0; H_A: ρ_xy < 0

c. H₀: ρ_xy ≤ 0; H_A: ρ_xy > 0

c-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

c-2. Find the p-value.

a. p-value < 0.01

b. p-value  0.10

c. 0.05  p-value < 0.10

d. 0.02  p-value < 0.05

e. 0.01  p-value < 0.02

d. At the 5% significance level, what is the conclusion to the test?

a. Reject H₀; we can state size and property taxes are correlated.

b. Reject H₀; we cannot state size and property taxes are correlated.

c. Do not reject H₀; we can state size and property taxes are correlated.

d. Do not reject H₀; we cannot state size and property taxes are correlated.

(1 point) Fueleconomy.gov, the official US government source for fuel economy information, allows users to share gas mileage information on their vehicles. The histogram below shows the distribution of gas mileage in miles per gallon (MPG) from 14 users who drive a 2012 Toyota Prius. The sample mean is 53.3 MPG and the standard deviation is 5.2 MPG. Note that these data are user estimates and since the source data cannot be verified, the accuracy of these estimates are not guaranteed. Report all answers to 4 decimal places.

1. We would like to use these data to evaluate the average gas mileage of all 2012 Prius drivers. Do you think this is reasonable? Why or why not?

? Yes No , because  ? the data distribution seems approximately normal there are 14 data points in the sample user estimates are reliable user estimates are not reliable .

The EPA claims that a 2012 Prius gets 50 MPG (city and highway mileage combined). Do these data provide strong evidence against this estimate for drivers who participate on fueleconomy.gov? Conduct a hypothesis test. Round numeric answers to 3 decimal places where necessary.

2. What are the correct hypotheses for conducting a hypothesis test to determine if these data provide strong evidence against this estimate for drivers who participate on fueleconomy.gov? (Reminder: check conditions)

A. ?0:?=50H0:μ=50 vs. ??:?≠50HA:μ≠50
B. ?0:?=50H0:μ=50 vs. ??:?>50.3HA:μ>50.3
C. ?0:?=53.3H0:μ=53.3 vs. ??:?≠53.3HA:μ≠53.3
D. ?0:?=50.3H0:μ=50.3 vs. ??:?<50HA:μ<50

3. Calculate the test statistic.

4. Calculate the p-value.

5. How much evidence do we have that the null model is not compatible with our observed results?

A. some evidence
B. little evidence
C. extremely strong evidence
D. strong evidence
E. very strong evidence

6. Calculate a 95% confidence interval for the average gas mileage of a 2012 Prius by drivers who participate on fueleconomy.gov.

( ,  )

Instructions: Complete the following queries using the Colonial Adventure Tours database. You will find the description including data of this database in page 16 to page 20 in Chapter 1 in your Concepts of Database Management textbook. For each following question, create a query using the Query Design option in Access. Make sure that you save and name each query in the following manner: Query1, Query2......Query14. Query Questions:

Queries:

1. List the name of each trip that does not start in New Hampshire (NH).

2. List the last name of each guide that does not live in Massachusetts (MA).

3. List the name and start location for each trip that has the type Biking.

4. List the name of each trip that has the type Hiking and that has a distance greater than six miles.

5. List the name of each trip that has the type Paddling or that is located in Vermont (VT).

6. List the customer number, customer last name, and customer first name of each customer that lives in New Jersey (NJ), New York (NY) or Pennsylvania (PA).

7. How many trips have a type of Hiking or Biking?

8. List the trip name and state for each trip that occurs during the Summer season. Sort the results by trip name within state.

9. How many trips originate in each state?

10. How many reservations include a trip with a price that is greater than $20 but less than $75?

11. Colonial Adventure Tours calculates the total price of a trip by adding the trip price plus other fees and multiplying the result by the number of persons included in the reservation. List the reservation ID, trip ID, customer number, and total price for all reservations where the number of persons is greater than four. Use the column name TOTAL_PRICE for the calculated field.

12. What is the average distance and the average maximum group size for each type of trip?

13. How many current reservations does Colonial Adventure Tours have and what is the total number of persons for all reservations?

1. Which of the following are necessary conditions for thunderstorm development?

     _______a. moisture in the air

     _______b. instability

     _______c. a lifting process

     _______d. (all of the above)

2. Rapid precipitation growth starts to take place in thunderstorm cell during which stage of evolution?

     _______a. cumulus or developing

     _______b. mature

     _______c. dissipating

     _______d. (any of the above)

3. A long narrow band of closely spaced thunderstorm cells is called a

     _______a. supercell.

     _______b. mesoscale convective system.

     _______c. squall line.

     _______d. Texas brawl.

4. Which type of thunderstorm generally produces the strongest tornadoes?

     _______a. multicell thunderstorm complex

     _______b. air mass thunderstorm

     _______c. supercell

     _______d. squall line thunderstorm

5. The rotating updraft of a mesocyclone is the result of

     _______a. twisting and turning.

     _______b. bobbing and weaving.

     _______c. tilting and stretching.

     _______d. shaking and baking.

6. For supercell formation, you need

     _______a. warm moist air near the surface.

     _______b. a lower tropospheric southerly flow with strong vertical wind shear.

     _______c. an unstable atmosphere.

     _______d. (all of the above)

7. Which region of the continental United States experiences the most days with large

    hail per year?

     _______a. the Great Plains.

     _______b. central Florida.

     _______c. the Pacific Northwest.

     _______d. New England.

8. Which of the following statements is false?

     _______a. Tornadoes form only in thunderstorms.

     _______b. Tornadoes form only in supercell thunderstorms.

     _______c. Tornadoes come in varying sizes and shapes.

     _______d. The strongest tornadoes are comparatively rare.

9. The season of maximum tornado frequency in the continental United States is

     _______a. winter.

     _______b. spring.

     _______c. summer.

     _______d. fall.

10. The only hazard usually associated with most air mass thunderstorms is

     _______a. large hail.

     _______b. hurricane force downburst winds.

     _______c. strong tornadoes.

     _______d. lightning.

11. The diameter of the largest tornado ever recorded was around

      _______a. 500 feet.

      _______b. 1,000 feet.

      _______c. one-half mile.

      _______d. two and one-half miles.

12. The majority of U.S. tornadoes move in which direction?

      _______a. toward the northeast

      _______b. toward the south

      _______c. toward the west

      _______d. toward the northwest

Have you ever wondered what happens to your recycled plastics when they are picked up at the curb by the trash truck? It gives everybody a good feeling to recycle, but what if recycling means more trash fees?

Michael Dumper, CEO of Belmont Waste Hauling, recently told citizens of Belmont at a recent Town Council meeting that because of the closure of the closest recycling center, he will now need to haul recycled plastics almost 200 miles to be recycled. Recyclables make up almost 40% of the trash load from Belmont and as a result Belmont Waste Hauling will lose money on hauling recyclables.

The city of Belmont requires all municipal buildings and all newly constructed public buildings to provide recycling containers for use. Belmont Waste Hauling will continue to haul the city’s waste and recycling this year, but the company’s contract with the city expires next June. At that point the city will need to renegotiate a new contract, maybe with a new company.

Many of the larger trash hauling giants are not willing to deal with the many issues involved with recycling plastics and simply bury it in landfills. It takes a lot of money up front to recycle, and they are not willing to lose any amount of profit on any load of trash.

Michael Dumper maintains that he wants to keep the Belmont trash contract. He hopes that with a small increase in fees he can continue to serve the city of Belmont. Competition forces companies to stop recycling programs unless consumers are willing to pay for them, he says. And yes, finding recycling centers that are still sorting and recycling is a challenge, but Michael is not yet conceding defeat and will continue to face the challenge of finding the plants that are still operating.

1. Discuss the reasons some trash haulers dump recyclable plastics into landfills.
2. Explain why aluminum cans are recycled more often than most other recyclables.
3. Give three reasons why it is important to recycle as much as possible.
4. Identify three materials that can be recycled, other than plastic or aluminum, and explain how they are recycled.

Case Study: Muscular Fitness Assessment and Exercise Prescription

Harold is a 40-year-old biology professor who teaches at the university and does research on cellular aging of skeletal muscle in dogs. Harold weighs 180 lb (81.6 kg). He recently purchased a new townhome that requires very little household or yard maintenance. His primary recreation consists of playing chess, reading, and playing classical guitar. For physical exercise he regularly puts the garbage out on Monday, presses remote control buttons for the TV and CD player, and rides his bicycle to work (2 miles [3.2 km] round-trip) 5 days per week. His research on aging prompted concern about his own muscular fitness. He contacted you to assess his strength and to design a resistance training program to increase his strength in an attempt to retard the degeneration of his muscular system. The results of his strength assessment were as follows:

Question

Harold's goal is to improve strength. If you were to design a resistance training program for him that uses free weights and exercise machines (Table 7.3 and Table 7.6), what would week 1 of the program entail. Be sure to complete this in the table below (it is not necessary to use the entire table below to complete week 1 of his program). How will you know when it is time to increase Harold’s resistance?

Weekly Workout Plan

Week:

Phase:

Goals:

Resistance Exercise Prescription:

C++ Problem

Use the following global structure declaration as an example only. You will need to create your own data structure based on a database of your own design. For example, movies in a video collection, houses for sale, business appointments, etc. Your data structure should include a minimum of four fields. At least one field should be string, and one field should be numeric (int, or double).  

Example Only

struct VEHICLE

{

string make;

string model;

int year;

int miles;

double price;

};

In main() create an array that has room that has room for 50 database records(i.e. an array of structures). Your program should support the following general menu choices –

1. Add Items (i.e. Add Vehicle)

2. List All Items (i.e. Show All Vehicles)

      Q. Quit

Your program should implement a separate function to add items, and display items. For example,

void addVehicle(VEHICLE arr[], VEHICLE addItem, int pos);

adds vehicle item that is a structure to the pos position in the dealer array.

void displayAll(VEHICLE arr[], int n);

displays all vehicle info for the number of vehicles stipulated (i.e. 0 to n-1)

Notes: You are welcome to create one or more additional functions to support your program. For example, showMenu, or getMenuChoice might be useful. Also, you might create a function to collect information, for example, a getVehicleInfo function could populate a structure that was passed ByRef. Please note, in the example above, addVehicle is passed a structure variable in addition to the array. In this approach, addVehicle should take the passed structure variable and add it to the dealer array at the position stipulated. You will need to use an index variable that your program can use to keep track of the next available position in the dealer array. This index variable should be local to main(). So NO global variables please. You will need to update or increment this index variable everytime you call addVehicle. You can use this variable when calling addVehicle, and displayAll.

Assume that it is appropriate and meaningful to calculate the correlation coefficient of two variables X and Y. If the correlation coefficient, r, has a value -0.95

Select one:

a. it is impossible to tell if there is a linearly relationship between the two variables

b. there is a strong linear relationship between the two variables

c. there is no relationship between the two variables

d. the slope of the regression line will be -0.95

2.

The father's height (in inches) and the (adult) son's height (in inches) are linearly associated. In a sample of 100 father-and-son pairs, the correlation coefficient, r, was found to be 0.8. If the height measurements of the father's and the son's are changed to centimetre (cm), what will be the new correlation coefficient ? (Note: one inch =2.54 cm)

Select one:

a. The answer cannot be calculated due to not enough information

b. 0.8

c.

d.

3.

Beer and Blood Alcohol Content

The relationship between number of beers consumed (x) and blood alcohol content ( y) was studied in 25 male college students by using simple linear regression. The estimated blood alcohol content ( ŷ ) is given in the following regression equation:

ŷ = -0.0127 + 0.0180x

The above equation estimates that:

Select one:

a. each beer consumed increases blood alcohol content by 0.0127

b. on average each beer consumed increases blood alcohol content by 0.0307

c. on average each beer consumed increases blood alcohol content by 0.0180

d. on average each beer consumed increases blood alcohol content by 0.0153

e. on average it takes 0.0180 beers to increase blood alcohol content by 0.0127

4.

Beer and Blood Alcohol Content

The relationship between number of beers consumed (x) and blood alcohol content ( y) was studied in 25 male college students by using simple linear regression. The estimated blood alcohol content ( ŷ ) is given in the following regression equation:

ŷ = -0.0127 + 0.0180x

Suppose that the legal blood alcohol content limit for driving is 0.05. If John consumed 4 beers the model would predict that he would be:

Select one:

a. 0.0027 above the legal limit

b. 0.0347 above the legal limit

c. 0.0093 above the legal limit

d. 0.022 above the legal limit

e. 0.0027 below the legal limit

5.  

A multiple choice test has 12 questions. Each question has 4 choices of which exactly one is correct. If a student makes random guesses for all 12 questions, what is the probability that the student will get exactly 5 questions correct?

Select one:

a. The answer cannot be determined from the given information.

b. 0.2270

c. 0.0584

d. 0.1032

e. 0.0532

6.

A medical doctor knows from past experience that 80% of his patients have private health insurance and 20% do not have private insurance. He also notices that among those who have private health insurance, 65% are over the age of 50 while among those who do not have private health insurance, only 30% are over the age of 50. What is the probability that a randomly selected patient is over 50 years of age and has private health insurance?

Select one:

a. 0.65

b. 0.3

c. 0.52

d. 0.16

e. The answer cannot be determined from the given information.

please provides this question answer quickly. i need it urgently.

1) Consider two different hedge funds with the following data related to performance:

Hedge fund              Alpha           Beta

Fund A                       5%            1.6

Fund B                                   3%            0.8

Assuming that beta is consistent with the type of investing we expected in both cases, which fund performed better.

A. Fund A, because it had the higher return

B. Fund A, because it had the higher alpha

C. Fund B, because its alpha is more impressive than Fund A when we consider how much less risk the fund took.

D. Fund B, because the beta is closer to 1.

2) When we analyze the performance of an actively managed mutual fund we find that the fund generated a beta of 1 and an alpha of zero.

A. this result shows that the manager took no risk when investing

B. this result shows that the manager did not add any value to performance with his/her decision-making

C. both (A) and (B) are true

D. none of the above

3) Consider two different hedge funds with the following data related to performance:

Hedge fund              Alpha           Beta

Fund A                       1%            0.8

Fund B                                   3%            -0.3

Assuming that beta is consistent with the type of investing we expected in both cases, which fund performed better?

A. Fund A, because Fund B should have negative alpha to match its negative beta

B. Fund A, because it had a higher beta than Fund B

C. Fund B, because its alpha is higher than Fund A.

D. Fund A, because the beta is closer to 1.

4) A positive alpha for a mutual fund means:

A. the fund invested in high-risk strategies

B. the fund manager’s performance was bad

C. both (A) and (B)

D. none of the above

5) In the Wall Street Journal’s darts versus pros competition, the difference in returns generated by the two portfolios is explained by:

I. the darts were poorly thrown

II. the pros pick riskier stocks

III. other investors buying the stocks that the pros pick

IV. the pros are simply good at picking stocks

A. I and II

B. II only

C. IV only

D. II and III

6) __________ is a false statement regarding open-end mutual funds.

A. They offer investors a guaranteed rate of return

B. They offer investors a well diversified portfolio

C. They redeem shares at their net asset value

D. None of the above (A, B, and C are all true)

7) When we analyze the performance of an actively managed mutual fund we find that the fund generated a beta of 1.5 and an alpha of zero.

A. this result shows that the manager took relatively high risk when investing

B.this result shows that the manager did not add any value to performance with his/her decision-making

C. both (A) and (B) are true

D. none of the above

8) An attractive feature of Exchange Traded Funds (ETFs) is:

A. the price of the fund always matches the Net Asset Value

B. the investor has more control over tax implications of trading than with a mutual fund

C. ETFs only trade once a day, making it easier to keep track of their prices.

D. the fund is highly likely to produce a positive alpha