In a random sample of​ males, it was found that 20 write with their left hands and 211 do not. In a random sample of​ females, it was found that 57 write with their left hands and 452 do not. Use a 0.05 significance level to test the claim that the rate of​ left-handedness among males is less than that among females. Complete parts​ (a) through​ (c) below.

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In a random sample of​ males, it was found that 20 write with their left hands and 211 do not. In a random sample of​ females, it was found that 57 write with their left hands and 452 do not. Use a 0.05 significance level to test the claim that the rate of​ left-handedness among males is less than that among females. Complete parts​ (a) through​ (c) below.

### Hypothesis Testing Assignment

In a study on handedness, a random sample of males revealed that 20 males write with their left hand while 211 do not. In a comparable sample of females, 57 write with their left hand, and 452 do not. We aim to determine if the rate of left-handedness among males is less than that among females at a significance level of 0.05.

### a. Hypothesis Testing

**Hypothesis Selection:**

Consider the first sample to be males and the second to be females. Select the appropriate null and alternative hypotheses:

- **A.** \( H_0: p_1 = p_2 \)  
  \( H_1: p_1 > p_2 \)

- **B.** \( H_0: p_1 \neq p_2 \)  
  \( H_1: p_1 = p_2 \)

- **C.** \( H_0: p_1 \leq p_2 \)  
  \( H_1: p_1 > p_2 \)

- **D.** \( H_0: p_1 \geq p_2 \)  
  \( H_1: p_1 < p_2 \)

- **E.** \( H_0: p_1 \neq p_2 \)  
  \( H_1: p_1 < p_2 \)

- **F.** \( H_0: p_1 = p_2 \)  
  \( H_1: p_1 < p_2 \)

**Identify the Test Statistic:**

- \( z = \quad \) (Round to two decimal places as needed.)

**Identify the P-value:**

- \( \text{P-value} = \quad \) (Round to three decimal places as needed.)

**Conclusion on the Hypothesis Test:**

- The P-value is (1) __________ the significance level \(\alpha = 0.05\), so (2) __________ the null hypothesis. There (3) __________ evidence to support the claim that the rate of left-handedness among males is less than among females.

### b. Confidence Interval

**90% Confidence Interval:**

- The confidence interval is \( \langle \quad , \quad \rangle (p_1 - p_2) \)  
  (Round to three
Transcribed Image Text:### Hypothesis Testing Assignment In a study on handedness, a random sample of males revealed that 20 males write with their left hand while 211 do not. In a comparable sample of females, 57 write with their left hand, and 452 do not. We aim to determine if the rate of left-handedness among males is less than that among females at a significance level of 0.05. ### a. Hypothesis Testing **Hypothesis Selection:** Consider the first sample to be males and the second to be females. Select the appropriate null and alternative hypotheses: - **A.** \( H_0: p_1 = p_2 \) \( H_1: p_1 > p_2 \) - **B.** \( H_0: p_1 \neq p_2 \) \( H_1: p_1 = p_2 \) - **C.** \( H_0: p_1 \leq p_2 \) \( H_1: p_1 > p_2 \) - **D.** \( H_0: p_1 \geq p_2 \) \( H_1: p_1 < p_2 \) - **E.** \( H_0: p_1 \neq p_2 \) \( H_1: p_1 < p_2 \) - **F.** \( H_0: p_1 = p_2 \) \( H_1: p_1 < p_2 \) **Identify the Test Statistic:** - \( z = \quad \) (Round to two decimal places as needed.) **Identify the P-value:** - \( \text{P-value} = \quad \) (Round to three decimal places as needed.) **Conclusion on the Hypothesis Test:** - The P-value is (1) __________ the significance level \(\alpha = 0.05\), so (2) __________ the null hypothesis. There (3) __________ evidence to support the claim that the rate of left-handedness among males is less than among females. ### b. Confidence Interval **90% Confidence Interval:** - The confidence interval is \( \langle \quad , \quad \rangle (p_1 - p_2) \) (Round to three
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