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A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 270 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 10% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? Right tailed test Left-tailed test Two-tailed test b. What is the test statistic? Z= (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.) Identify the null hypothesis. O A. Ho: p<0.1 OB. Ho: p=0.1 OC. Ho: p=0.1 O D. Ho: p>0.1 1-PropZTest prop <0.1 z = -1.825741858 p=0.0339445775 p=0.0666666667 n=270 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is greater than the significance level, a OB. Reject the null hypothesis because the P-value is less than or equal to the significance level, a O C. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O D. Reject the null hypothesis because the P-value is greater than the significance level, a.

A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 270 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 10% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? Right tailed test Left-tailed test Two-tailed test b. What is the test statistic? Z= (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.) Identify the null hypothesis. O A. Ho: p<0.1 OB. Ho: p=0.1 OC. Ho: p=0.1 O D. Ho: p>0.1 1-PropZTest prop <0.1 z = -1.825741858 p=0.0339445775 p=0.0666666667 n=270 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is greater than the significance level, a OB. Reject the null hypothesis because the P-value is less than or equal to the significance level, a O C. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O D. Reject the null hypothesis because the P-value is greater than the significance level, a.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 270 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 10% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? Right tailed test Left-tailed test Two-tailed test b. What is the test statistic? Z= (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.) Identify the null hypothesis. O A. Ho: p<0.1 OB. Ho: p=0.1 OC. Ho: p=0.1 O D. Ho: p>0.1 1-PropZTest prop < 0.1 z = -1.825741858 p=0.0339445775 p=0.0666666667 n=270 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is greater than the significance level, a OB. Reject the null hypothesis because the P-value is less than or equal to the significance level, a O C. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O D. Reject the null hypothesis because the P-value is greater than the significance level, a. e. What is the final conclusion? OA. There is sufficient evidence to support the claim that less than 10% of treated subjects experienced headaches. B. There is not sufficient evidence to support the claim that less than 10% of treated subjects experienced headaches. OC. There is sufficient evidence to warrant rejection of the claim that less than 10% of treated subjects experienced headaches. O D. There is not sufficient evidence to warrant rejection of the claim that less than 10% of treated subjects experienced headaches.
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 270 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 10% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? Right tailed test Left-tailed test Two-tailed test b. What is the test statistic? Z= (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.) Identify the null hypothesis. O A. Ho: p<0.1 OB. Ho: p=0.1 OC. Ho: p=0.1 O D. Ho: p>0.1 1-PropZTest prop < 0.1 z = -1.825741858 p=0.0339445775 p=0.0666666667 n=270 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is greater than the significance level, a OB. Reject the null hypothesis because the P-value is less than or equal to the significance level, a O C. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O D. Reject the null hypothesis because the P-value is greater than the significance level, a. e. What is the final conclusion? OA. There is sufficient evidence to support the claim that less than 10% of treated subjects experienced headaches. B. There is not sufficient evidence to support the claim that less than 10% of treated subjects experienced headaches. OC. There is sufficient evidence to warrant rejection of the claim that less than 10% of treated subjects experienced headaches. O D. There is not sufficient evidence to warrant rejection of the claim that less than 10% of treated subjects experienced headaches.
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