Does the average Presbyterian donate more than the average Catholic in church on Sundays? The 56 randomly observed members of the Presbyterian church donated an average of $21 with a standard deviation of $5. The 46 randomly observed members of the Catholic church donated an average of $16 with a standard deviation of $15. What can be concluded at the a = 0.01 level of %3D significance? a. For this study, we should use ( Select an answer b. The null and alternative hypotheses would be:

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**Comparison of Average Sunday Church Donations: Presbyterians vs. Catholics**

*Research Question:* 
Does the average Presbyterian donate more than the average Catholic in church on Sundays?

*Study Details:*
- **Presbyterian Donations:** 
    - Sample Size: 56 members
    - Average Donation: $21
    - Standard Deviation: $5
- **Catholic Donations:** 
    - Sample Size: 46 members
    - Average Donation: $16
    - Standard Deviation: $15

*Analysis at α = 0.01 Level of Significance:*

1. **Statistical Test Selection:**
    - For this study, we need to use a **two-sample t-test**.

2. **Hypotheses:**
    - **Null Hypothesis (H₀):**
        - μ₁ ≤ μ₂ (The mean donation by Presbyterians is less than or equal to the mean donation by Catholics)
    - **Alternative Hypothesis (H₁):**
        - μ₁ > μ₂ (The mean donation by Presbyterians is greater than the mean donation by Catholics)

3. **Test Statistic Calculation:**
    - The test statistic is calculated using the given sample sizes, means, and standard deviations.

4. **P-value Determination:**
    - The **p-value** is obtained from the t-distribution table or by using statistical software.

5. **Comparison Decision:**
    - **Compare the p-value with α (0.01):**
        - If the p-value is less than 0.01, we reject the null hypothesis (indicating significant evidence).
        - If the p-value is greater than 0.01, we do not reject the null hypothesis (indicating insufficient evidence).

6. **Conclusion:**
    - Based on the p-value and the test statistic, conclude if there is significant evidence to state that Presbyterians donate more on average than Catholics.

*How to Interpret the Results:*
- If results are **statistically significant** at α = 0.01:
    - We have sufficient evidence to conclude that the population mean amount of money that Presbyterians donate is more than the population mean amount of money that Catholics donate.
- If results are **statistically insignificant** at α = 0.01:
    - There is insufficient evidence to conclude that the population mean amount of money that Presbyterians donate is more than the population mean amount of
Transcribed Image Text:**Comparison of Average Sunday Church Donations: Presbyterians vs. Catholics** *Research Question:* Does the average Presbyterian donate more than the average Catholic in church on Sundays? *Study Details:* - **Presbyterian Donations:** - Sample Size: 56 members - Average Donation: $21 - Standard Deviation: $5 - **Catholic Donations:** - Sample Size: 46 members - Average Donation: $16 - Standard Deviation: $15 *Analysis at α = 0.01 Level of Significance:* 1. **Statistical Test Selection:** - For this study, we need to use a **two-sample t-test**. 2. **Hypotheses:** - **Null Hypothesis (H₀):** - μ₁ ≤ μ₂ (The mean donation by Presbyterians is less than or equal to the mean donation by Catholics) - **Alternative Hypothesis (H₁):** - μ₁ > μ₂ (The mean donation by Presbyterians is greater than the mean donation by Catholics) 3. **Test Statistic Calculation:** - The test statistic is calculated using the given sample sizes, means, and standard deviations. 4. **P-value Determination:** - The **p-value** is obtained from the t-distribution table or by using statistical software. 5. **Comparison Decision:** - **Compare the p-value with α (0.01):** - If the p-value is less than 0.01, we reject the null hypothesis (indicating significant evidence). - If the p-value is greater than 0.01, we do not reject the null hypothesis (indicating insufficient evidence). 6. **Conclusion:** - Based on the p-value and the test statistic, conclude if there is significant evidence to state that Presbyterians donate more on average than Catholics. *How to Interpret the Results:* - If results are **statistically significant** at α = 0.01: - We have sufficient evidence to conclude that the population mean amount of money that Presbyterians donate is more than the population mean amount of money that Catholics donate. - If results are **statistically insignificant** at α = 0.01: - There is insufficient evidence to conclude that the population mean amount of money that Presbyterians donate is more than the population mean amount of
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