Test the claim that the mean GPA of night students is larger than 3.2 at the 0.01 significance level. The null and alternative hypotheses would be: Но: д — 3.2 Но: и — 3.2 Но:р — 3.2 Но:р — 0.8 Но:р — 0.8 Но:р — 0.8 Ні:д 2 3.2 Hі:р < 3.2 Н:n> 3.2 Hi:р > 0.8 Hi:р < 0.8 Ні:р 0.8 %3D The test is: right-tailed two-tailed left-tailed Based on a sample of 31 people, the sample mean GPA was 3.24 with a standard deviation of 0.14 The p-value is: (to 3 decimals) The significance level is: (to 2 decimals) Based on this we: O Fail to reject the null hypothesis O Reject the null hypothesis

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### Hypothesis Testing: Mean GPA of Night Students

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#### Problem Statement
Test the claim that the mean GPA of night students is larger than 3.2 at the 0.01 significance level.

#### Null and Alternative Hypotheses
Choose the correct null and alternative hypotheses from the options below:

1. \( H_0: \mu = 3.2 \) and \( H_1: \mu \neq 3.2 \)
2. \( H_0: \mu = 3.2 \) and \( H_1: \mu < 3.2 \)
3. \( H_0: \mu = 3.2 \) and \( H_1: \mu > 3.2 \)
4. \( H_0: p = 0.8 \) and \( H_1: p > 0.8 \)
5. \( H_0: p = 0.8 \) and \( H_1: p < 0.8 \)
6. \( H_0: p = 0.8 \) and \( H_1: p \neq 0.8 \)

**Correct Answer:**
- \( \mathbf{H_0: \mu = 3.2} \)
- \( \mathbf{H_1: \mu > 3.2} \)

#### Test Type
Choose the correct test type from the options below:

- Right-tailed
- Two-tailed
- Left-tailed

**Correct Answer:**
- \(\mathbf{Right\textrm{-}tailed}\)

#### Sample Data
Based on a sample of 31 people, the sample mean GPA was 3.24 with a standard deviation of 0.14.

#### P-value Calculation
Calculate the p-value (to 3 decimals):

- P-value: \_\_\_\_\_\_

#### Significance Level
Enter the significance level (to 2 decimals):

- Significance level: \_\_\_\_\_\_

#### Conclusion
Based on the p-value and significance level, choose the correct conclusion:

- Fail to reject the null hypothesis
- Reject the null hypothesis

#### Additional Details
To calculate the p-value for a one-tailed test:

1. Convert the sample mean GPA (3.24) to a z-score using the formula for the test statistic:
   
   \[
   z =
Transcribed Image Text:### Hypothesis Testing: Mean GPA of Night Students --- #### Problem Statement Test the claim that the mean GPA of night students is larger than 3.2 at the 0.01 significance level. #### Null and Alternative Hypotheses Choose the correct null and alternative hypotheses from the options below: 1. \( H_0: \mu = 3.2 \) and \( H_1: \mu \neq 3.2 \) 2. \( H_0: \mu = 3.2 \) and \( H_1: \mu < 3.2 \) 3. \( H_0: \mu = 3.2 \) and \( H_1: \mu > 3.2 \) 4. \( H_0: p = 0.8 \) and \( H_1: p > 0.8 \) 5. \( H_0: p = 0.8 \) and \( H_1: p < 0.8 \) 6. \( H_0: p = 0.8 \) and \( H_1: p \neq 0.8 \) **Correct Answer:** - \( \mathbf{H_0: \mu = 3.2} \) - \( \mathbf{H_1: \mu > 3.2} \) #### Test Type Choose the correct test type from the options below: - Right-tailed - Two-tailed - Left-tailed **Correct Answer:** - \(\mathbf{Right\textrm{-}tailed}\) #### Sample Data Based on a sample of 31 people, the sample mean GPA was 3.24 with a standard deviation of 0.14. #### P-value Calculation Calculate the p-value (to 3 decimals): - P-value: \_\_\_\_\_\_ #### Significance Level Enter the significance level (to 2 decimals): - Significance level: \_\_\_\_\_\_ #### Conclusion Based on the p-value and significance level, choose the correct conclusion: - Fail to reject the null hypothesis - Reject the null hypothesis #### Additional Details To calculate the p-value for a one-tailed test: 1. Convert the sample mean GPA (3.24) to a z-score using the formula for the test statistic: \[ z =
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