4. What do you conclude 5. What would you recommend

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The customer service ratings for two banks are found below. As manager decide which bank your company should select using a 90% confidence level. Conduct a test to determine whether there is a significant difference between the
variances of the two banks' rating.
Current
New Bank
89.9
80.4
82.2
98.7
75.1
83.1
41.7
99.8
84.3
86.2
98.6
97.1
75.4
87.9
80.6
78.5
76.4
69.9
81.4
98.5
59.7
82.9
98.4
49.5
83.4
54.6
76.2
90.1
1. Provide the null hypothesis:.
a. Ho: o?, s o2,
b. Họ: o?, 2 o?2
c. Ho: o?, = o?2
d. Ho: o?, * o?2
2. Compute the test statistic
(Round to the second decimal place)
3.
Determine the p-value
(Round to the third decimal place)
4.
What do you conclude
5.
What would you recommend
Transcribed Image Text:The customer service ratings for two banks are found below. As manager decide which bank your company should select using a 90% confidence level. Conduct a test to determine whether there is a significant difference between the variances of the two banks' rating. Current New Bank 89.9 80.4 82.2 98.7 75.1 83.1 41.7 99.8 84.3 86.2 98.6 97.1 75.4 87.9 80.6 78.5 76.4 69.9 81.4 98.5 59.7 82.9 98.4 49.5 83.4 54.6 76.2 90.1 1. Provide the null hypothesis:. a. Ho: o?, s o2, b. Họ: o?, 2 o?2 c. Ho: o?, = o?2 d. Ho: o?, * o?2 2. Compute the test statistic (Round to the second decimal place) 3. Determine the p-value (Round to the third decimal place) 4. What do you conclude 5. What would you recommend
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