Question

A certain drug is used to treat asthma. In a clinical trial of the? drug, 26 of 255 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 99?% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.01 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

Is the test? two-tailed, left-tailed, or? right-tailed?

d. What is the null hypothesis, and what do you conclude about it?

Identify the null hypothesis.

A.H 0 : p?0.09

B.H 0 : p=0.09

C.H 0: p>0.09

D.H0: p<0.09

Decide whether to reject the null hypothesis. Choose the correct answer below.

A. Fail to reject the null hypothesis because the? P-value is less than or equal to less than or equal to the significance? level, ?.

B. Fail to reject the null hypothesis because the? P-value is greater thangreater than the significance? level, ?.

C Reject the null hypothesis because the? P-value is greater than greater than the significance? level, ?.

D Reject the null hypothesis because the? P-value is less than or equal toless than or equal to the significance? level, ?.

e. What is the final? conclusion?

A.There is notis not sufficient evidence to support the claim that less than 99?% of treated subjects experienced headaches.

B.There is sufficient evidence to support the claim that less than 99?% of treated subjects experienced headaches.

C.There is sufficient evidence to warrant rejection of the claim that less than 99?% of treated subjects experienced headaches.

D.There is not is not sufficient evidence to warrant rejection of the claim that less than 99?% of treated subjects experienced headaches.

Answer 1

叭 26 2 ss o . 66구 Po L