Random Sample Selection 40 out of 60 students

What value is two standard deviations above the mean?
What value is 1.5 standard deviations below the mean?
Construct a histogram displaying your data.
In complete sentences, describe the shape of your graph.
Do you notice any potential outliers? If so, what values are they? Show your work in how you used the potential outlier formula to determine whether or not the values might be outliers.
Construct a box plot displaying your data.
Does the middle 50% of the data appear to be concentrated together or spread apart? Explain how you determined this.
Looking at both the histogram and the box plot, discuss the distribution of your data.

1. Jack and Jill open a candy shop. Jack runs the retail front, while Jill orders all the stock and manages all the finances. Which type of partnership are they most likely to enter into?
2. Ahamed is a successful lawyer. He joins a new law firm bringing his clients will him. The new firm is going to make him a partner. Which type of partnership is he going to enter into?
3. Rong and her wife run a florist. Their mothers decide to invest $5,000.00 each in the flower shop. Six months after investing, Rong’s mother starts coming to the flower shop to assist in its management.
   1. What kind of partnership did the mothers enter into when they first invested?
   2. What kind of partnership did Rong’s mother move into when she started assisting in the management of the flower shop?
4. Identify two advantages of a corporation
5. Identify two advantages of a sole proprietorship
6. Give an example of a company that has a licensing agreement (you may not use the examples from the textbook)
7. Give an example of the type of industry where we typically see an agency as a business relationship (you may not use the examples from the textbook)

Monthly returns for two stocks are given below:

(a) Calculate the correlation between the returns of these two stocks. Consider a portfolio of the two stocks weighted 60:40 at t = 0.

(b) Calculate the returns on the rebalanced portfolio for each month and plot the portfolio return and the stock returns as shown in the graph in Section 7.4.2.

(c) Calculate the returns on an unrebalanced portfolio and plot the portfolio return and the stock returns.

            You need the following information for #7 and #8.

Assume that today is July 26, 2018. Assume that you expect the following cash flows of REL, INC.

                                                                        CASH FLOWS

7/26/18                        7/26/19                     7/26/20                           7/26/21            7/26/22           

                                    $10                               $0                               $15                $15     

Assume that you will buy one share today (7/26/18) and sell your one share two years from today (7/26/20).

7)   How much will you pay today for a share of stock? Also assume that a fair rate of return for an investment of like risk is 10%.

1. $36.36
2. $33.06
3. $20.36
4. $28.63
5. $30.61

8) How much do you expect to sell your one share for on 7/26/20? Assume that these are all of the cash flows that REL will produce. Also assume that a fair rate of return for an investment of like risk is 10%.

1. $27
2. $25
3. $24
4. $30
5. $26     

4 questions about social statistic

test scores of students : 66 89 47 63 40 51 62 80 60 97 48 64 67 97 60 67 81 64 74 38 69 50 59 80 57 33 47 72 68 91 74 47 73 50 52 43 54 98 54 63 79 33 51 54 60 44 82 43 32 48 46 57 47 92 72 87 71 79 84 41 40 58 44 61 38 92 71 41 83 84

What % of students received the high est score and the low est score?

What % of students received the most c ommon score?

What score did the students receive on average ? (I need statistical formula and process of calculation)

What score did almost half of th e students receive ? (I need statistical formula and process of calculation)

4 questions about social statistic

test scores of students : 66 89 47 63 40 51 62 80 60 97 48 64 67 97 60 67 81 64 74 38 69 50 59 80 57 33 47 72 68 91 74 47 73 50 52 43 54 98 54 63 79 33 51 54 60 44 82 43 32 48 46 57 47 92 72 87 71 79 84 41 40 58 44 61 38 92 71 41 83 84

What % of students received the high est score and the low est score?

What % of students received the most c ommon score?

What score did the students receive on average ? (I need statistical formula and process of calculation)

What score did almost half of th e students receive ? (I need statistical formula and process of calculation)

ABC company incurred the following maintainance costs during the past 6 months
Table 1
Months Machine hours Cost $
1 20 4560
2 40 9780
3 50 10920
4 60 11280
5 30 6320
6 90 18920
7 25 5140
8 43 10500
9 70 12400

REQUIRED
Part 1
A. Use the data on Table 1 , estimate the variable and fixed cost of the company
using the high and low method
B. Develop a cost function for the company.
C. Estimate the maintenance cost if 120 machine hours were used in July
Part 2
1. Use a scattergraph and the two points that seem to best represent the relationship
between cost and activity levels of 900 and 300 machine hours. Use these two
points , estimate the variable cost and the fixed cost [ components of maintenance
costs]
2. Develop a cost function that the company can use to estimate maintenance cost at
different volume levels
3. Estimate maintenance costs for July if the company expects to use 2800 machine
hours

data set will need at least four variables - at least two categorical and at least two quantitative. For example, you might consider the following variables for American participants in a survey: birth month (categorical), state of birth (categorical), average number of bowls of cereal eaten per week (quantitative), and amount spent on groceries (quantitative).

(a) First, formulate a research question relating to two of your quantitative variables along the lines of "how does *quantitative variable 1* relate to *quantitative variable 2*?" For example, you might ask "Does the average height for students relate to the average number of hours slept by students?" Include the question in your Word document.

(b) Create a least-squares regression line that answers the research question posed in part (a). Your answer here will be graded on the following: (i) an appropriate scatterplot related to the two variables (ii) correlation coefficient "r" and coefficient of determination "r²" between the two variables, (iii) a determination of whether the correlation coefficient is significant and (iv) whether your line is correct (with slope and intercept) based on the data provided!

The following frequency distribution shows the ages of India’s 53 richest individuals. One of these individuals is selected at random.

a. What is the probability that the individual is between 50 and 60 years of age? (Round your answer to 3 decimal places.)

Probability:_______

b. What is the probability that the individual is younger than 50 years of age? (Round your answer to 3 decimal places.)

Probability:_______

c. What is the probability that the individual is at least 60 years of age? (Round your answer to 3 decimal places.)

Probability:_______

NASA has sent about a dozen robotic lander and rover missions to Mars, and only seven have succeeded. One of these missions, the Mars Polar Lander, was lost due to a problem with a sensor. A sensor onboard the spacecraft triggered the shutdown of the lander's engines when it thought the craft had landed on the planet, but it had not reached the surface yet; in fact, the craft was 131 feet above the surface when the engines were turned off, and the resulting drop destroyed the vehicle.

For this discussion, identify and discuss at least one other disaster that was caused by an embedded system failure, including problems with either the hardware or software.