Question
In: Statistics and Probability
The table shows the total 4-year cost (in thousands of dollars) and the Graduation rate (nearest...
The table shows the total 4-year cost (in thousands of dollars) and the Graduation rate (nearest percentage) from 4 randomly selected colleges/universities in the U.S.
| Cost, x | 250 | 138 | 81 | 85 |
| Graduation Rate, y | 83 | 92 | 57 | 32 |
The mean of x is 138.5 The standard deviation of x is 78.742
The mean of y is 66 The standard deviation of y is 27.092
The deviations and the z-scores for each x and y value are given below: Note: I tried my best with the tables below. BlackBoard has some issues with some of the font and symbols that were used.
| (x - x̄ ) |
(y - ȳ ) |
Zx | Zy | ||
| 111.5 | 17 | 1.416 | 0.627 | ||
| -0.5 | 26 | -0.006 | 0.960 | ||
| -57.5 | -9 | -0.730 | -0.332 | ||
| -53.5 | -34 | -0.679 | -1.255 |
a) Show the equations along with plugging the values into the corresponding equation on how the mean of the y values and the standard deviation of the y values were obtained. You may use a table above to help you with the standard deviation.
b) Find the correlation coefficient. You may use any of the tables above for help or any other equation method (Just stating the answer from a graphing calculator/technology will receive only 0 or 1 point for this question). Round the answer to 3 decimal places.
Solutions
Expert Solution
a)
b)
***please comment if you have any doubts.Happy to help you.Thank you. Please Like.
orchestra answered 2 years agoRelated Solutions
The accompanying table shows the annual salaries, in thousands of dollars, earned by a sample of...
The accompanying table shows the annual salaries, in thousands
of dollars, earned by a sample of individuals who graduated with
MBAs in the years 2012 and 2013. Perform a hypothesis test using α
equals= 0.05 to determine if the median salary for 2012 MBA
graduates is lower than 2013 MBA graduates.
Salaries (in thousands of dollars) for 2012 MBA graduates
92.6
66.1
60.6
85.5
92.8
44.7
84.4
81.1
44.2
94.3
66.6
61.6
94.6
81.6
Salaries (in thousands of dollars) for...
The table below shows part of the cost structure (total fixed cost, total variable cost, and...
The table below shows part of the cost structure (total fixed
cost, total variable cost, and total cost) for a typical producer
of olive oil -- a perfectly competitive industry.
Copy the table into Excel and use it to calculate average total
cost and marginal cost for all quantities from 1 to 10. Use Excel
(following the hints in QSet 2, #9) to produce a diagram of the
firm’s average total cost and marginal cost curves.
If the price of...
The table to the right shows the cost per ounce (in dollars) for a random sample...
The table to the right shows the cost per ounce (in dollars)
for a random sample of toothpastes exhibiting very good stain
removal, good stain removal, and fair stain removal. At
alpha=0.05, can you conclude that the mean costs per ounce are
different? Perform a one-way ANOVA test by completing parts a
through d. Assume that each sample is drawn from a normal
population, that the samples are independent of each other, and
that the populations have the same variances....
3. Complete the following table (in thousands of dollars) assuming a prepayment rate of 165PSA: Original...
3. Complete the following table (in thousands of dollars)
assuming a prepayment rate of 165PSA:
Original balance: $100,000,000; Pass-through rate: 9.0%; WAM:
360 months;
Balance
SMM
Mortgage Payment
Interest
Scheduled Principal
prepayment
total principal
cash flow
1
2
WAC: 9.65%
The table shows total cost and total revenue information for a perfectly (or purely) competitive firm....
The table shows total cost and total revenue information for a
perfectly (or purely) competitive firm.
Quantity
Total cost
Total revenue
00
500500
00
11
600600
135135
22
710710
270270
33
830830
405405
44
960960
540540
55
11001100
675675
66
12501250
810810
77
14101410
945945
88
15801580
10801080
99
17601760
12151215
1010
19501950
13501350
Firms earning a loss will sometimes shut down in the short run.
What quantity will the firm produce if it shuts down in the short
run?...
The table below shows the total cost and marginal cost for Chrissy's Costumes, a perfectly competitive...
The table below shows the total cost and marginal cost for
Chrissy's Costumes, a perfectly competitive firm producing
different quantities of children's costumes. The market price of
costumes is $15.00.
Chrissy's Costs of
Production
Quantity (costumes)
Total Cost (dollars)
Marginal Cost (dollars)
100
$8.00
$7.50
200
7.50
6.50
300
7.00
7.00
400
9.00
12.00
500
12.00
15.00
600
15.00
17.00
Instructions: Enter your answers as a whole
number.
a. If the market price is $15.00 per costume, how many...
The following data shows the quarterly profit (in thousands of dollars) made by a particular company...
The following data shows the quarterly profit (in thousands of
dollars) made by a particular company in the past 3 years.
Year
Quarter
Profit ($1000s)
1
1
45
1
2
51
1
3
72
1
4
50
2
1
49
2
2
45
2
3
79
2
4
54
3
1
42
3
2
58
3
3
70
3
4
56
a. Use α = 0.3 to
compute the exponential smoothing values for the time series.
Compute MSE and the forecast...
The table to the right shows the number of people, in thousands, in a country without...
The table to the right shows the number of people, in
thousands, in a country without health insurance in a certain year.
Complete parts a) through d) below.
Insured
Uninsured
Under 18 years
67 comma 22767,227
7 comma 0537,053
18 to 24 years
21 comma 37221,372
8 comma 8308,830
25 to 34 years
29 comma 10929,109
11 comma 58211,582
35 to 44 years
31 comma 62231,622
8 comma 0258,025
45 to 64 years
67 comma 16167,161
13 comma 03113,031
65...
The table to the right shows the number of people, in thousands, in a country without...
The table to the right shows the number of people, in
thousands, in a country without health insurance in a certain year.
Complete parts a) through d) below.
Insured
Uninsured
Under 18 years
67 comma 02567,025
7 comma 4337,433
18 to 24 years
21 comma 08721,087
8 comma 8648,864
25 to 34 years
29 comma 33729,337
11 comma 25711,257
35 to 44 years
31 comma 77831,778
8 comma 2798,279
45 to 64 years
67 comma 06267,062
13 comma 46513,465
65...
The table to the right shows the number of men and women, in thousands, enrolled in...
The table to the right shows the number of men and women, in
thousands, enrolled in degree-granting institutions in a certain
year. The men and women are categorized by their age groups.
Complete parts a) through f) below.
Men
Women
14 to 17 years old
1313
1010
18 and 19 years old
274274
322322
20 and 21 years old
281281
452452
22 to 24 years old
542542
681681
25 to 29 years old
433433
829829
30 to 34 years old...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- If you wanted to store a birthday within code, what class would you use in Java?...
- Explain what is meant by the Theme Park internal and external business environment and use the...
- Description Write a program that prints out your name, the course ID of this class, what...
- A project has an initial cost of $65,475, expected net cash inflows of $12,000 per year...
- Make a program that lets the user enter a positive or negative integer as many times...
- using java, parse a text file to be able to list the word(s) with the highest...
- Consider the following linear programming problem: Maximize 10X + 8Y Subject to: 40X + 24Y <=...
ADVERTISEMENT