For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 578 potsherds was found, of which 352 were identified as Santa Fe black-on-white.

(a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.)


(b) Find a 95% confidence interval for p. (Round your answers to three decimal places.)

Give a brief statement of the meaning of the confidence interval.

5% of the confidence intervals created using this method would include the true proportion of potsherds.95% of the confidence intervals created using this method would include the true proportion of potsherds.    5% of all confidence intervals would include the true proportion of potsherds.95% of all confidence intervals would include the true proportion of potsherds.

(c) Do you think that np > 5 and nq > 5 are satisfied for this problem? Explain why this would be an important consideration.

Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately binomial.

Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately normal.    

No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately binomial.

No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately normal.

(1) For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

In a random sample of 65 professional actors, it was found that 37 were extroverts.

(a) Let p represent the proportion of all actors who are extroverts. Find a point estimate for p. (Round your answer to four decimal places.) ____

(b) Find a 95% confidence interval for p. (Round your answers to two decimal places.)

lower limit ____

upper limit ____

(2) For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 610 potsherds was found, of which 365 were identified as Santa Fe black-on-white.

(a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.) ____


(b) Find a 95% confidence interval for p. (Round your answers to three decimal places.)

(3) What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (Round your answers up the nearest whole number.)

(a) a preliminary estimate for p is 0.34 ____


(b) there is no preliminary estimate for p ____

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 610 potsherds was found, of which 350 were identified as Santa Fe black-on-white.

(a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.)

(b) Find a 95% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit Give a brief statement of the meaning of the confidence interval. 95% of the confidence intervals created using this method would include the true proportion of potsherds. 5% of all confidence intervals would include the true proportion of potsherds. 95% of all confidence intervals would include the true proportion of potsherds. 5% of the confidence intervals created using this method would include the true proportion of potsherds.

(c) Do you think that np > 5 and nq > 5 are satisfied for this problem? Explain why this would be an important consideration. Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately normal. Yes, the conditions are satisfied. This is important because it allows us to say that p̂ is approximately binomial. No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately binomial. No, the conditions are not satisfied. This is important because it allows us to say that p̂ is approximately normal.

Your data science experiment now requires four additional data tasks. The first task is to use the list append method to add to the list variable named btcdec1 the BTC price of 14560. The second task is to create a new list with a variable named btcdec2 and append the btc prices of 15630, 12475, and 14972. The third task required you to use the list extend method to add the contents of the list in variable name btcdec2 into the variable name btcdec1. The fourth and final task requires you to use the list sort method in the list named btcdec1 to sort the items in the newly extended list, then use the print statement to output the content of list btcdec1 into the Python console.

QUESTION 26

1. For more efficient SQL, replace a series of OR clauses with

   		IN
   		AND
   		NULL
   		DISTINCT

2.5 points   

QUESTION 27

1. SELECT ADD_MONTHS('01-FEB_2016', 3) from dual; results in

   		04-FEB-2016
   		01-MAY-2016
   		31-MAY-2016
   		04-MAY-2016

2.5 points   

QUESTION 28

1. joining a table to itself is refered to as

   		an equijoin
   		a self join
   		an outer join
   		a non equi-join

2.5 points   

QUESTION 29

1. SELECT MIN(NAME) from Customer; will return which of the following rows

   		ALICE
   		WILLIAM
   		BLAKE
   		JAMAL

2.5 points   

QUESTION 30

1. To obtain all the rows from two tables regardless of matches which join should be used

   		RIGHT OUTER
   		LEFT OUTER
   		EQUIJOIN
   		FULL OUTER

2.5 points   

QUESTION 31

1. To sort data returned from a SQL statement, which clause should be used

   		ORDER BY
   		WHERE
   		GROUP BY
   		HAVING

Its a multiple question answer.I donot have any more database

Use excel and please show both formulas and numbers.

Answer this: Now if I were investing my $1200 a year at 12% with no children and I win the lottery at year 30 and win $1,000,000 cash, how much money can I blow today (at year 30) and still have the $2,000,000 when I retire at year 40.

not sure but it might be a continuation of - If I want to invest $1200 a year for 20 years and then stop investing for 10 years, to pay for my slacker child to get a doctorate, how much will I need to invest a year in my final 10 years of work to get my $2,000,000 to make me really happy at 12% interest?

A split-plot experiment was conducted in a completely randomized design with whole-plot treatments as a 2x2 factorial (factors A and B) and the subplot treatments as three levels of factor C. There are four whole-plot replicants per whole plot treatment. Assume all treatment effects were fixed and include all interactions between factors.

1. Write the linear model for the experiment. Identify each of the model effects/components and list the number of levels for each effect. Make sure to specify which effects are random and which are fixed.

2. Create the ANOVA table for the experiment, just including the name of the source, degrees of freedom, and expected mean squares

3. Write out the appropriate F-ratio for each of the treatment effects and all interactions.

4. PS：Part b of homework 5 was proving a little more difficult than intended. For some of the ANOVA tables in chapter 14 slides I added a column for the expected MS to make part of the question a little easier. In your solutions you'll want to replace any letters with their values if the problem gives them. If the problem doesn't, just use the notation.

PLEASE Create a perceptual map using the following data:

After researching the demographic and competitive profile of several markets, they decided Dallas, Texas, would be the best place to start their business. In examining the markets, they were looking for a town that would best fit their target market of singles and families in the age range of 18 to 50. The population of Dallas was almost 5.5 million people, of which about 50 percent were between the ages of 25 and 60. This indicated there were a lot of individuals in their target market in the Dallas area. They also found that about 55 percent of the population earns between $35,000 and $75,000 a year, which indicated the market would have enough income to eat out regularly. Finally, 56 percent of the population was married, and many of them had children at home, which was consistent with their target market. More detailed demographic information for the area is shown below. The new restaurant concept was based upon the freshest ingredients, complemented by a festive atmosphere, friendly service, and cutting-edge advertising and marketing strategies. The key would be to prepare and serve the freshest “made-from-scratch” Mexican foods possible. Everything would be prepared fresh every single day. In addition to their freshness concept, they wanted to have a fun, festive atmosphere, and fast, friendly service. The atmosphere would be open, brightly lit, and bustling with activity. Their target market would be mostly families with children, between the ages of 18 and 49. Their marketing programs would be memorable, with the advertising designed to provide an appealing, slightly offbeat positioning in the market. The Santa Fe Grill was not successful as quickly as the owners had anticipated. To improve the restaurant operations, the owners needed to understand what aspects of the restaurant drive customer satisfaction and loyalty, and where they were falling short in serving their customers. So they decided to conduct three surveys. One was designed to obtain information from current customers of the Santa Fe Grill. A second survey would collect information from customers of their primary competitor, Jose’s Southwestern Café. The third survey was designed to collect data from the employees who worked for the Santa Fe Grill. They believed the employee survey was important because employee experiences might be affecting how customers evaluated the restaurant. The Santa Fe Grill was located on an outparcel on the east side near the main entrance of the Cumberland Mall. The mall has 75 or more stores and is considered very successful for the area. A market research company was located in the mall so they 19 decided to use a mall intercept approach to collect customer data. Another Mexican restaurant that had been in business longer and appeared to be more successful was also on an outparcel at the same mall, but its location was on the west side of the mall. The goal was to complete interviews with 250 individuals who had recently eaten at the Santa Fe Grill and 150 diners who had recently eaten at Jose’s Southwestern Café. Additionally, employees of the Santa Fe Grill were asked to log on to a website to complete the employee survey. Over a period of two weeks, a total of 405 customer interviews were completed—152 for Jose’s and 253 for the Santa Fe Grill. Of the employee survey, 77 questionnaires were completed. The owners believe the surveys will help them to identify the restaurant’s strengths and weaknesses, enable them to compare their restaurant to a nearby competitor, and develop a plan to improve the restaurant’s operations. Selected Demographics for Geographic Area (10-mile radius of Santa Fe Grill) Households by Type Number Percent Total households 452,000 100 Family households 267,000 59 With children under 18 years 137,000 30 Non-Family households 185,000 41 Householder living alone 148,850 33 Householder 65 years and over 29,570 7 Households with individuals under 18 years 157,850 35 Households with individuals 65 years and over 74,250 16 Average household size 2.6 people Average family size 3.4 people Gender and Age Number Percent Male 599,000 51 Female 589,000 49 Total 1,188,000 Under 20 years 98,800 29 20 to 34 years 342,000 29 35 to 44 years 184,000 16 45 to 54 years 132,500 11 55 to 59 years 44,250 4 60 years and over 13,000 11 Median Age (years) 32 18 years and over 873,000 74

The corrosion of rebar inside concrete structures is serious issue for the safety and stability of bridges and buildings. The chemistry of corrosion is complex, but a simplified chemical model (iron rusting) is: 4Fe (s) + 3O2 (g) ⟶ 2Fe2O3 (s) ∆H = −1.65 × 103 kJ a) How much heat is released when 1.00 pound of iron rusts? b) If 6.25 × 104 kJ is released, how many kilograms of iron have rusted?

1) A door-to-door salesman expects to make a sale 26% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.36. If he makes no sale, the probability for a sale to the next customer stays at 0.26. What is the probability that he will make at least two sales with his first three visits?

2)Two machines turn out all the products in a factory, with the first machine producing 50% of the product and the second 50%. The first machine produces defective products 2% of the time and the second machine 7% of the time.

(a) What is the probability that a defective part is produced at this factory given that it was made on the first machine?


(b) What is the probability that a defective part is produced at this factory?

3)Dystopia county has three bridges. In the next year, the Elder bridge has a 11% chance of collapse, the Younger bridge has a 2% chance of collapse, and the Ancient bridge has a 22% chance of collapse. What is the probability that exactly one of these bridges will collapse in the next year? (Round your final answer to four decimal places. Do not round intermediate calculations.)