Assume that a simple random sample has been selected and test the given claim. Use the P-value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. The ages of actresses when they won an acting award is summarized by the statistics n=77, x 35.9 years, and s = 11.9 years. Use a 0.05 significance level to test the claim that the mean age of actresses when they win an acting award is 33 years.

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Assume that a simple random sample has been selected and test the given claim. Use the P-value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.

The ages of actresses when they won an acting award is summarized by the statistics \( n = 77, \bar{x} = 35.9 \) years, and \( s = 11.9 \) years. Use a 0.05 significance level to test the claim that the mean age of actresses when they win an acting award is 33 years.

**What are the hypotheses?**

- **A.** \( H_0: \mu \neq 33 \) years  
  \( H_1: \mu = 33 \) years  

- **B.** \( H_0: \mu = 33 \) years  
  \( H_1: \mu \neq 33 \) years  

- **C.** \( H_0: \mu = 33 \) years  
  \( H_1: \mu \geq 33 \) years  

- **D.** \( H_0: \mu = 33 \) years  
  \( H_1: \mu < 33 \) years  

**Identify the test statistic.**  
\( t = \_\_ \) (Round to three decimal places as needed.)

**Identify the P-value.**  
The P-value is \_\_. (Round to four decimal places as needed.)

**State the final conclusion that addresses the original claim. Choose the correct answer below.**

- **A.** Fail to reject \( H_0 \). There is insufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33 years.

- **B.** Fail to reject \( H_0 \). There is sufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33.

- **C.** Reject \( H_0 \). There is sufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33 years.

*(Click to select your answer(s).)*
Transcribed Image Text:Assume that a simple random sample has been selected and test the given claim. Use the P-value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. The ages of actresses when they won an acting award is summarized by the statistics \( n = 77, \bar{x} = 35.9 \) years, and \( s = 11.9 \) years. Use a 0.05 significance level to test the claim that the mean age of actresses when they win an acting award is 33 years. **What are the hypotheses?** - **A.** \( H_0: \mu \neq 33 \) years \( H_1: \mu = 33 \) years - **B.** \( H_0: \mu = 33 \) years \( H_1: \mu \neq 33 \) years - **C.** \( H_0: \mu = 33 \) years \( H_1: \mu \geq 33 \) years - **D.** \( H_0: \mu = 33 \) years \( H_1: \mu < 33 \) years **Identify the test statistic.** \( t = \_\_ \) (Round to three decimal places as needed.) **Identify the P-value.** The P-value is \_\_. (Round to four decimal places as needed.) **State the final conclusion that addresses the original claim. Choose the correct answer below.** - **A.** Fail to reject \( H_0 \). There is insufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33 years. - **B.** Fail to reject \( H_0 \). There is sufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33. - **C.** Reject \( H_0 \). There is sufficient evidence to warrant rejection of the claim that the mean age of actresses when they win an acting award is 33 years. *(Click to select your answer(s).)*
**Educational Website Transcript:**

A simple random sample of 56 adults is obtained from a normally distributed population, and each person's red blood cell count (in cells per microliter) is measured. The sample mean is 5.32 and the sample standard deviation is 0.51. Use a 0.05 significance level and the given calculator display to test the claim that the sample is from a population with a mean less than 5.4, which is a value often used for the upper limit of the range of normal values. What do the results suggest about the sample group?

**Test Details:**
- **T-Test**
  - μ < 5.4
  - t = -1.173853298
  - p = 0.1227559397
  - x̄ = 5.32
  - Sx = 0.51
  - n = 56

**Identify the P-value:**
- (Round to four decimal places as needed.)

**State the final conclusion that addresses the original claim. Choose the correct answer below:**

- **A.** Fail to reject H₀. There is not sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4.
- **B.** Reject H₀. There is not sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4.
- **C.** Reject H₀. There is sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4.
- **D.** Fail to reject H₀. There is sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4. *(Selected)*

**What do the results suggest about the sample group?**

- **A.** There is not enough evidence to conclude that the sample is from a population with a mean less than 5.4, so it is unlikely that the population has counts that are too high.
- **B.** There is enough evidence to conclude that the sample is from a population with a mean less than 5.4, so it is unlikely that the population has counts that are too high.
- **C.** There is enough evidence to conclude that the sample is from a population with a mean less than 5.4,
Transcribed Image Text:**Educational Website Transcript:** A simple random sample of 56 adults is obtained from a normally distributed population, and each person's red blood cell count (in cells per microliter) is measured. The sample mean is 5.32 and the sample standard deviation is 0.51. Use a 0.05 significance level and the given calculator display to test the claim that the sample is from a population with a mean less than 5.4, which is a value often used for the upper limit of the range of normal values. What do the results suggest about the sample group? **Test Details:** - **T-Test** - μ < 5.4 - t = -1.173853298 - p = 0.1227559397 - x̄ = 5.32 - Sx = 0.51 - n = 56 **Identify the P-value:** - (Round to four decimal places as needed.) **State the final conclusion that addresses the original claim. Choose the correct answer below:** - **A.** Fail to reject H₀. There is not sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4. - **B.** Reject H₀. There is not sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4. - **C.** Reject H₀. There is sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4. - **D.** Fail to reject H₀. There is sufficient evidence to support the claim that the sample is from a population with a mean less than 5.4. *(Selected)* **What do the results suggest about the sample group?** - **A.** There is not enough evidence to conclude that the sample is from a population with a mean less than 5.4, so it is unlikely that the population has counts that are too high. - **B.** There is enough evidence to conclude that the sample is from a population with a mean less than 5.4, so it is unlikely that the population has counts that are too high. - **C.** There is enough evidence to conclude that the sample is from a population with a mean less than 5.4,
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