Question 7: 120 people have rated a new wine on a taste scale of 0 to 100. The result of the survey is shown on this worksheet. Develop a 99% confidence interval for the population standard deviation of taste ratings in the previous question.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question
A
В
D
E
F
1
Person Rating
Question 7:
1
74
120 people have rated a new wine on a taste scale of 0 to 100. The result of the survey
is shown on this worksheet. Develop a 99% confidence interval for the population
standard deviation of taste ratings in the previous question.
68
4
3
78
4
74
6.
79
7
82
Rating
8
7
82
8
68
Мean
75.51666667
10
9.
78
Standard Error
0.737071894
11
10
69
Median
75
12
11
67
Mode
74
13
12
62
Standard Deviation
8.074218055
14
13
75
Sample Variance
65.1929972
15
14
89
Kurtosis
-0.353806477
16
15
73
Skewness
0.044168813
17
16
75
Range
40
18
17
88
Minimum
57
19
18
75
Maximum
97
20
19
62
Sum
9062
21
20
69
Count
120
22
21
71
Confidence Level(99.0%)
1.929489097
Transcribed Image Text:A В D E F 1 Person Rating Question 7: 1 74 120 people have rated a new wine on a taste scale of 0 to 100. The result of the survey is shown on this worksheet. Develop a 99% confidence interval for the population standard deviation of taste ratings in the previous question. 68 4 3 78 4 74 6. 79 7 82 Rating 8 7 82 8 68 Мean 75.51666667 10 9. 78 Standard Error 0.737071894 11 10 69 Median 75 12 11 67 Mode 74 13 12 62 Standard Deviation 8.074218055 14 13 75 Sample Variance 65.1929972 15 14 89 Kurtosis -0.353806477 16 15 73 Skewness 0.044168813 17 16 75 Range 40 18 17 88 Minimum 57 19 18 75 Maximum 97 20 19 62 Sum 9062 21 20 69 Count 120 22 21 71 Confidence Level(99.0%) 1.929489097
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