In Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.2 inches with a standard deviation of 3 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through c below. a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05. Which of the following correctly states Ho and H₂? A. D. Ho:μ ≥37 Ha:μ<37 Ho: μ = 37 Ha: μ#37 Find the test statistic. B. O E. Ho: μ = 37 Ha: μ<37 Ho: μ#37 Ha: μ = 37 t= (Type an integer or decimal rounded to two decimal places as needed.) Find the p-value. р (Type an integer or decimal rounded to three decimal places as needed.) Reject or do not reject Ho. Choose the correct answer below. Ho: μ>37 C. Ha: μ≤37 O F. Ho: μ = 37 Ha: μ>37

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T and p value please

Below is the educational website formatting for the given content:

---

### Hypothesis Testing: Finding the Test Statistic and P-Value

#### Task:
Find the test statistic and p-value from your data.

1. **Calculate the Test Statistic (t):**
   - **Input:** Type an integer or decimal rounded to two decimal places as needed.
   - **Field:** `t = [____]`

2. **Calculate the P-Value (p):**
   - **Input:** Type an integer or decimal rounded to three decimal places as needed.
   - **Field:** `p = [____]`

#### Decision:
Determine whether to reject or not reject the null hypothesis (H₀). Choose the correct option:

- **Option A:** 
  - **Action:** Reject H₀.
  - **Reasoning:** The population mean is definitely not 37 inches based on the data at a significance level of 0.05.

- **Option B:** 
  - **Action:** Reject H₀.
  - **Reasoning:** There is reason to believe that 37 inches is not the population mean at a significance level of 0.05.

- **Option C:** 
  - **Action:** Do not reject H₀.
  - **Reasoning:** There is no reason to believe that 37 inches is not the population mean at a significance level of 0.05.

- **Option D:** 
  - **Action:** Do not reject H₀.
  - **Reasoning:** The population mean is definitely 37 inches based on the data at a significance level of 0.05.

---

Make sure to complete your calculations to determine which option to select based on your data analysis.
Transcribed Image Text:Below is the educational website formatting for the given content: --- ### Hypothesis Testing: Finding the Test Statistic and P-Value #### Task: Find the test statistic and p-value from your data. 1. **Calculate the Test Statistic (t):** - **Input:** Type an integer or decimal rounded to two decimal places as needed. - **Field:** `t = [____]` 2. **Calculate the P-Value (p):** - **Input:** Type an integer or decimal rounded to three decimal places as needed. - **Field:** `p = [____]` #### Decision: Determine whether to reject or not reject the null hypothesis (H₀). Choose the correct option: - **Option A:** - **Action:** Reject H₀. - **Reasoning:** The population mean is definitely not 37 inches based on the data at a significance level of 0.05. - **Option B:** - **Action:** Reject H₀. - **Reasoning:** There is reason to believe that 37 inches is not the population mean at a significance level of 0.05. - **Option C:** - **Action:** Do not reject H₀. - **Reasoning:** There is no reason to believe that 37 inches is not the population mean at a significance level of 0.05. - **Option D:** - **Action:** Do not reject H₀. - **Reasoning:** The population mean is definitely 37 inches based on the data at a significance level of 0.05. --- Make sure to complete your calculations to determine which option to select based on your data analysis.
In Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.2 inches with a standard deviation of 3 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through c below.

---

**a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05.**

Which of the following correctly states \( H_0 \) and \( H_a \)?

- A. \( H_0: \mu \geq 37 \)  
  \( H_a: \mu < 37 \)

- B. \( H_0: \mu = 37 \)  
  \( H_a: \mu < 37 \)

- C. \( H_0: \mu > 37 \)  
  \( H_a: \mu \leq 37 \)

- D. \( H_0: \mu = 37 \)  
  \( H_a: \mu \ne 37 \)

- E. \( H_0: \mu \ne 37 \)  
  \( H_a: \mu = 37 \)

- F. \( H_0: \mu = 37 \)  
  \( H_a: \mu > 37 \)

*(Option D is selected)*

**Find the test statistic.**

\( t = \) [ ]

(Type an integer or decimal rounded to two decimal places as needed.)

**Find the p-value.**

\( p = \) [ ]

(Type an integer or decimal rounded to three decimal places as needed.)

**Reject or do not reject \( H_0 \). Choose the correct answer below.**
Transcribed Image Text:In Country A, the population mean height for 3-year-old boys is 37 inches. Suppose a random sample of 15 3-year-old boys from Country B showed a sample mean of 36.2 inches with a standard deviation of 3 inches. The boys were independently sampled. Assume that heights are Normally distributed in the population. Complete parts a through c below. --- **a. Determine whether the population mean for Country B boys is significantly different from the Country A mean. Use a significance level of 0.05.** Which of the following correctly states \( H_0 \) and \( H_a \)? - A. \( H_0: \mu \geq 37 \) \( H_a: \mu < 37 \) - B. \( H_0: \mu = 37 \) \( H_a: \mu < 37 \) - C. \( H_0: \mu > 37 \) \( H_a: \mu \leq 37 \) - D. \( H_0: \mu = 37 \) \( H_a: \mu \ne 37 \) - E. \( H_0: \mu \ne 37 \) \( H_a: \mu = 37 \) - F. \( H_0: \mu = 37 \) \( H_a: \mu > 37 \) *(Option D is selected)* **Find the test statistic.** \( t = \) [ ] (Type an integer or decimal rounded to two decimal places as needed.) **Find the p-value.** \( p = \) [ ] (Type an integer or decimal rounded to three decimal places as needed.) **Reject or do not reject \( H_0 \). Choose the correct answer below.**
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