Question

Traditionally, wine has been sold in glass bottles with cork stoppers. The stoppers are supposed to keep air out of the bottle because oxygen is the enemy of the wine. Particularly red wine. Recent research appears to indicate that metal screw caps are more effective in keeping air out of the bottle. However, metal caps are perceived to be inferior and usually associated with cheaper brands of wine. A random sample of 130 people who drink at least one bottle per week on average was asked to participate in an experiment. All were given the same wine in two types of bottles. One group was given a corked bottle, and the other group of people was given a bottle with a metal cap and asked to taste the wine and indicate what they think the retail price of the wine should be.

METAL PRICE = 13 12 16 5 7 8 6 10 11 9 6 16 15 15 9 17 6 10 11 7 8 11 22 21 11 6 11 10 17 12 13 11 16 18 12 11 11

CORK PRICE = 16 10 15 10 17 11 14 13 11 14 11 16 18 16 10 17 14 14 16 7 10 12 19 15 16 14 9 12 21 13 10 16 12 16 13 17 17

QUESTION-Determine the rejection and nonrejection regions.

Answer #1

Cork price: 16 10 15 10 17 11 14 13 11 14 11 16 18 16 10 17 14
14 16 7 10 12 19 15 16 14 9 12 21 13 10 16 12 16 13 17 17 13 14 18
11 12 15 16 13 18 16 17 12 12 14 9 11 14 19 13 11 17 11 13 15 14 18
18 18 12 10 11 13 14 11 14 18 13 13 19 17 14...

Cork price: 16 10 15 10 17 11 14 13 11 14 11 16 18 16 10 17 14
14 16 7 10 12 19 15 16 14 9 12 21 13 10 16 12 16 13 17 17 13 14 18
11 12 15 16 13 18 16 17 12 12 14 9 11 14 19 13 11 17 11 13 15 14 18
18 18 12 10 11 13 14 11 14 18 13 13 19 17 14...

Test, at the 1% level of significance, whether the average
business has more than 15 employees.
Answer using excel.
Employees
14
17
17
6
8
17
21
16
6
17
11
17
15
16
20
19
6
12
17
22
20
17
11
11
9
22
17
18
21
20
26
7
16
19
18
11
21
17
25
16
22
14
14
16
18
20
21
11
19
13
6
11
19
14
18
31
13
15
17
21...

Is there enough evidence that the average number of PURPLE
Skittles in a package is greater than the average number of ORANGE
Skittles in a package? Use the attached Skittles sample and test at
the significance level of .01
Package
Red
Orange
Yellow
Green
Purple
Total
Dominant Color
1
15
15
16
12
14
72
Y
2
13
6
11
16
15
61
G
3
9
9
10
18
15
61
G
4
7
9
8
18
15
57
G...

Indices DUR DUR (OLD)
1 6 11
2 13 14
3 11 14
4 7 10
5 9 9
6 7 10
7 8 11
8 5 8
9 7 6
10 7 10
11 7 13
12 3 5
13 10 13
14 3 15
15 4 12
16 9 7
17 9 8
18 10 13
19 6 10
20 8 14
21 10 14
22 8 18
23 2 10
24 4 11
25 7 16
26 ...

Bag
Blue
Orange
Green
Yellow
Red
Brown
Total Number of Candies
1
7
23
9
11
4
6
60
2
16
16
4
7
9
4
56
3
14
14
3
10
5
11
57
4
13
14
7
8
8
6
56
5
18
12
7
10
5
7
59
6
12
9
11
9
8
8
57
7
15
16
6
6
6
8
57
8
15
17
8
4
6
7
57
9
12
14
10
5...

6. Using the class data (see Blackboard file - "Class Survey
Data - PSS-10 and GAS") calculate the correlation between the GAS –
Goal disengagement and the GAS – Goal reengagement scores. Write
the results in a statistical statement.
7. Using the class data calculate the correlation between the
GAS – Goal disengagement and the PSS-10 scores. Write the results
in a statistical statement.
8. Using the class data calculate the correlation between the
GAS – Goal reengagement scores and...

Compute each of the following probabilities. Label each problem
clearly and show all your work. Use the numbers you computed in
earlier parts of the project based on the class data set.
Problem 1: Suppose all of the Skittles in the class data set
are combined into one large bowl and you are going to randomly
select one Skittle.
(a) What is the probability that you select a green Skittle? (4
points)
(b) What is the probability that you select...

7 10 14 11 13 12 13 15 12 13 14 10 11 15 13 9 13 14 16 17 15 19
12 16 14 Calculate standard deviation, average, 75th percentile.
Also Construct two histograms, one with a class interval width of
1.0, one with a class width interval of 2.0. Indicate
which histogram you would present and the reason why you selected
it.

____________________________________________
The results of a sample of 372 subscribers to Wired
magazine shows the time spent using the Internet during the week.
Previous surveys have revealed that the population standard
deviation is 10.95 hours. The sample data can be found in the Excel
test data file.
What is the probability that another sample of 372 subscribers
spends less than 19.00 hours per week using the Internet?
____________________________________________
Develop a 95% confidence interval for the population mean
____________________________________________
If the editors...

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