Utility bills for single family homes are at least $150 per month. After an improvement in infrastructure, the utility company would like to determine if the utility bills are no less than $150 per month. The next 25 utility bills averaged $145.25 per month with the sample standard deviation of $10. At 0.10 significance level, test if the bills are less than $150. 1. Which of the following (A,B,C,or D) would be the correct hypothesis statement? A. Ho: Ps 0.25 Ha: p > 0.25 Β. Ho: μ >= 150H: μ < 150 C. Ho: < 150 Ha: μ > 150 D. Ho: Ms 130 H₂: μ> 130 2. The critical value is 3. The statistical value in this problem is... three decimal places 4. The p-value range associated with the test statistic from the t table is... 5. At a 10% level of significance, will the decision be to Reject or DNR?

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Utility bills for single family homes are at least $150 per month. After an improvement in infrastructure, the utility company would like to determine if the utility bills are now
less than $150 per month.
The next 25 utility bills averaged $145.25 per month with the sample standard deviation of $10. At 0.10 significance level, test if the bills are less than $150.
1. Which of the following (A,B,C,or D) would be the correct hypothesis statement?
A. Ho: p ≤ 0.25 Ha: p > 0.25
B. Ho: >= 150 H₂: μ< 150
C. Ho:
<=150 H₂:μ > 150
D. Ho: M 130 H₁: μ> 130
2. The critical value is
3. The statistical value in this problem is...
three decimal places
4. The p-value range associated with the test statistic from the t table is ...
5. At a 10% level of significance, will the decision be to Reject or DNR?
Transcribed Image Text:Utility bills for single family homes are at least $150 per month. After an improvement in infrastructure, the utility company would like to determine if the utility bills are now less than $150 per month. The next 25 utility bills averaged $145.25 per month with the sample standard deviation of $10. At 0.10 significance level, test if the bills are less than $150. 1. Which of the following (A,B,C,or D) would be the correct hypothesis statement? A. Ho: p ≤ 0.25 Ha: p > 0.25 B. Ho: >= 150 H₂: μ< 150 C. Ho: <=150 H₂:μ > 150 D. Ho: M 130 H₁: μ> 130 2. The critical value is 3. The statistical value in this problem is... three decimal places 4. The p-value range associated with the test statistic from the t table is ... 5. At a 10% level of significance, will the decision be to Reject or DNR?
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