A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He colle (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. These data in years. (You may find it useful to reference the appropriate table: z table or t table) Brand A Brand B Brand A Brand B 17 16 24 18 14 16 24 17 19 20 19 22 24 14 14 22 22 24 23 12 19 15 23 16 16 21 16 14 19 12 21 22 14 21 24 24 12 18 13 17' 15 12 12 20 15 16 12 19 24 12 21 20 20 13 15 19 21 14 20 14 23 22 14 18 18 22 19 18 19 12 16 23 18 21 19 20 13 15 23 19 Click here for the Excel Data File Assume that μ₁ is the mean longevity for Brand A and μ2 is the mean longevity for Brand B. a. Select the competing hypotheses to test whether the average length of life differs between the two brands. He: H1 - H2 = 0; HA: H1 - H2 #0
A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He colle (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. These data in years. (You may find it useful to reference the appropriate table: z table or t table) Brand A Brand B Brand A Brand B 17 16 24 18 14 16 24 17 19 20 19 22 24 14 14 22 22 24 23 12 19 15 23 16 16 21 16 14 19 12 21 22 14 21 24 24 12 18 13 17' 15 12 12 20 15 16 12 19 24 12 21 20 20 13 15 19 21 14 20 14 23 22 14 18 18 22 19 18 19 12 16 23 18 21 19 20 13 15 23 19 Click here for the Excel Data File Assume that μ₁ is the mean longevity for Brand A and μ2 is the mean longevity for Brand B. a. Select the competing hypotheses to test whether the average length of life differs between the two brands. He: H1 - H2 = 0; HA: H1 - H2 #0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:apter 10) Post-Class
A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He colle
(measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. These data
in years. (You may find it useful to reference the appropriate table: z table or t table)
Brand A Brand B Brand A Brand B
17
16
23
24
18
22
14
16
14
24
17
18
19
18
20
22
19
19
22
18
24
19
14
12
14
16
22
23
22
18
24
21
23
19
12
20
19
13
18
15
13
23
17'
19
15
23
16
16
21
16
14
19
12
21
22
14
21
24
24
12
P
15
12
12
20
15
16
12
19
24
21
20
20
13
15
19
21
14
20
14
Click here for the Excel Data File
Saved
Assume that μ₁ is the mean longevity for Brand A and 2 is the mean longevity for Brand B.
a. Select the competing hypotheses to test whether the average length of life differs between the two brands.
O He: H1 - H₂ = 0; HA: M1 - µ2 * 0
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