In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6996 subjects randomly selected from an online group involved with ears. There were 1303 SE returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distributic Identify the null hypothesis and alternative hypothesis. O A. Ho p>0.2 H p= 0.2 O B. Ho p<0.2 H p= 02 O D. Ho p#0.2 H, p= 02 OF. Ho: p=0.2 O C. Ho p=0.2 H p 0.2 O E. Ho p=0.2 CS H p<0.2 H, p>0 2 The test statistic is z= ur (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) Because the P-value is the significance level, V the null hypothesis. There is V evidence to support the claim that the return rate is less than 20%

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6,996 subjects randomly selected from an online group involved with ears. There were 1,303 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.

**Identify the null hypothesis and alternative hypothesis:**

- **Option A:**
  - \( H_0: p > 0.2 \)
  - \( H_1: p = 0.2 \)

- **Option B:**
  - \( H_0: p < 0.2 \)
  - \( H_1: p = 0.2 \)

- **Option C:**
  - \( H_0: p = 0.2 \)
  - \( H_1: p \neq 0.2 \)

- **Option D:**
  - \( H_0: p \neq 0.2 \)
  - \( H_1: p = 0.2 \)

- **Option E:**
  - \( H_0: p = 0.2 \)
  - \( H_1: p < 0.2 \)

- **Option F:**
  - \( H_0: p = 0.2 \)
  - \( H_1: p > 0.2 \)

**The test statistic is \( z = \) [ ]**  
(Round to two decimal places as needed.)

**The P-value is [ ]**  
(Round to three decimal places as needed.)

Because the P-value is [select] the significance level, [select] the null hypothesis. There is [select] evidence to support the claim that the return rate is less than 20%.
Transcribed Image Text:In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6,996 subjects randomly selected from an online group involved with ears. There were 1,303 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution. **Identify the null hypothesis and alternative hypothesis:** - **Option A:** - \( H_0: p > 0.2 \) - \( H_1: p = 0.2 \) - **Option B:** - \( H_0: p < 0.2 \) - \( H_1: p = 0.2 \) - **Option C:** - \( H_0: p = 0.2 \) - \( H_1: p \neq 0.2 \) - **Option D:** - \( H_0: p \neq 0.2 \) - \( H_1: p = 0.2 \) - **Option E:** - \( H_0: p = 0.2 \) - \( H_1: p < 0.2 \) - **Option F:** - \( H_0: p = 0.2 \) - \( H_1: p > 0.2 \) **The test statistic is \( z = \) [ ]** (Round to two decimal places as needed.) **The P-value is [ ]** (Round to three decimal places as needed.) Because the P-value is [select] the significance level, [select] the null hypothesis. There is [select] evidence to support the claim that the return rate is less than 20%.
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