Question

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 the PSS-10 scores. Write the results in a statistical statement.

Student PSS-10 GAS-D
GAS-R

1 20 5 21

2 14 10 22

3 23 11 14

4 18 8 18

5 15 8 20

6 26 10 21

7 10 19 22

8 10 13 27

9 12 11 23

10 31 7 18

11 23 11 20

12 20 5 25

13 20 15 24

14 27 10 22

15 17 11 25

16 18 4 18

17 15 8 25

18 20 16 21

19 21 12 25

20 31 5 18

21 25 5 23

22 14 8 20

23 11 9 23

24 23 9 21

25 27 5 23

26 22 8 23

27 14 12 24

28 23 4 15

29 13 13 23

30 18 8 18

31 11 7 27

32 10 7 21

33 28 4 16

34 12 4 19

35 19 16 25

36 14 9 20

37 21 13 23

38 22 16 28

39 18 10 25

40 20 10 13

41 8 4 9

42 26 10 24

43 16 8 23

44 25 6 17

45 21 13 25

46 29 9 22

47 20 9 16

48 21 13 22

49 12 12 24

50 21 7 22

51 27 11 18

52 15 16 20

53 7 11 24

54 23 9 12

55 15 8 16

56 8 4 23

57 14 6 25

58 24 11 19

59 27 6 22

60 13 32 27

61 30 13 22

62 27 7 21

63 23 14 22

64 24 10 24

65 12 12 28

66 13 9 23

67 17 5 21

68 28 9 20

69 19 9 27

70 6 6 24

71 24 13 18

72 9 9 26

73 16 11 22

74 14 15 14

75 22 14 21

76 22 8 22

77 25 8 17

78 11 11 12

79 14 10 16

80 9 14 21

81 13 9 19

82 16 11 24

83 23 4 19

84 26 14 24

85 23 11 22

86 27 6 23

87 1 12 18

88 12 11 6

89 12 12 16

90 22 15 24

91 9 7 23

92 12 9 23

Answer #1

The results of a sample of 372 subscribers
toWiredmagazine 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 of Wiredwanted to have the...

____________________________________________
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...

A manufacturing company is purchasing metal pipes of standard
length from two different suppliers, ABC and XYZ. In the past two
months there are increasing complaints by the Production Manager
that delivery times by ABC present higher variability in comparison
to the delivery times by XYZ. The Production Manager is worried
that this variability will make it harder to efficiently schedule
the production process. If the variance of XYZ remains unchanged,
what should be the variance of ABC in order...

A study was conducted to see if students’ writing skills
continue to improve as the academic year progresses. English 101
students were asked to write essays throughout the year in
September, December, March and June. The scores were compared to
see if there is any improvement in this one-year course. Was there
a significant improvement?
The appropriate test for this problem is:
one-way ANOVA
repeated measurements
Student
September
December
March
June
1
17
23
21
24
2
25
21
21...

A manufacturing company is purchasing metal pipes of standard
length from two different suppliers, ABC and XYZ. In the past two
months there are increasing complaints by the Production Manager
that delivery times by ABC present higher variability in comparison
to the delivery times by XYZ. The Production Manager is worried
that this variability will make it harder to efficiently schedule
the production process.
Does the sample data indicate a statistically significant
difference at the 5% level? Justify your answer....

A manufacturing company is purchasing metal pipes of standard
length from two different suppliers, ABC and XYZ. In the past two
months there are increasing complaints by the Production Manager
that delivery times by ABC present higher variability in comparison
to the delivery times by XYZ. The Production Manager is worried
that this variability will make it harder to efficiently schedule
the production process. Does the sample data indicate a
statistically significant difference at the 5% level? Justify your
answer....

Convert the Ch01_SalesSummary file to a database table
in MS Access (steps: drop unnecessary titles row and import data
into Access using “External Data” Excel tab in Access). Sort the
new Access database table in ascending order by any one
column.
Table
Waitstaff
Member#
#Guests
Hour
Food
Beverage
Total
29
WH
0
1
8
0
4
5
28
MM
101
4
8
0
4
5
28
MM
0
2
8
5
8
15
5
LR
0
2
8
5
9...

A doctor discovers a particular disease and determines the life
expectancy is not good. He gathers the data for his patents and
posts it in the table below. The claims that the average life
expectancy once the disease presents itself is less than 15 days.
Check his claim and make an appropriate report about your findings
Patient Days till passing
1 24
2 23
3 13
4 20
5 10
6 18
7 13
8 14
9 24
10 25...

Choose either column D or E of the attached data set and analyze
using the techniques discussed in class up to this point. This
includes the following:
Find the appropriate measure of center. Discuss why the chosen
measure is most appropriate. Why did you decide against other
possible measures of center?
Find the appropriate measure of variation. The measure of
variation chosen here should match the measure of center chosen in
Part 1.
Find the graph(s) needed to appropriately describe...

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...

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