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.
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F717e652d-d2e5-48fc-b5bd-80fe3da265db%2F4bdac285-4a67-4c48-b1cc-b53bd3d463aa%2F06z61fb_processed.png&w=3840&q=75)
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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