A department store's purchase return level is believed to be different from the established level of 20%. In a sample of 200 customers, 25 customers made a purchase retur In testing the management's belief, the appropriate hypotheses: 1. Which of the following (A,B,C,or D) would be the correct hypothesis statement? A. Ho: p=0.20 H₁: p=0.20 B. Ho: p ≤ 0.20 H₁: p > 0.20 C. Ho: p= 200 H₁: p > 200 D. Ho: Hs 200 H₂:μ > 200 To test at 95% confidence, in a sample of 200 customers, 25 customers made a purchase return. 2. The critical value is State or +- 3. The value of the test statistic in this problem is... 4. The p-value associated with the test statistic is... 5. Decision? (2 decimal places) (4 decimal places)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A department store's purchase return level is believed to be different from the established level of 20%. In a sample of 200 customers, 25 customers made a purchase return.
In testing the management's belief, the appropriate hypotheses:
1. Which of the following (A,B,C,or D) would be the correct hypothesis statement?
A. Ho: p = 0.20 H₁: p=0.20
B. Ho: p ≤ 0.20 H₁: p > 0.20
C. Ho: P = 200 H₁: p > 200
D. Ho: μ ≤ 200 H₁: μ > 200
To test at 95% confidence, in a sample of 200 customers, 25 customers made a purchase return.
2. The critical value is
State + - or +-
3. The value of the test statistic in this problem is...
4. The p-value associated with the test statistic is ...
5. Decision?
(2 decimal places)
(4 decimal places)
Transcribed Image Text:A department store's purchase return level is believed to be different from the established level of 20%. In a sample of 200 customers, 25 customers made a purchase return. In testing the management's belief, the appropriate hypotheses: 1. Which of the following (A,B,C,or D) would be the correct hypothesis statement? A. Ho: p = 0.20 H₁: p=0.20 B. Ho: p ≤ 0.20 H₁: p > 0.20 C. Ho: P = 200 H₁: p > 200 D. Ho: μ ≤ 200 H₁: μ > 200 To test at 95% confidence, in a sample of 200 customers, 25 customers made a purchase return. 2. The critical value is State + - or +- 3. The value of the test statistic in this problem is... 4. The p-value associated with the test statistic is ... 5. Decision? (2 decimal places) (4 decimal places)
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