Question

In a trial of

320320

patients who received​ 10-mg doses of a drug​ daily,

4848

reported a headache as a side effect. Use the information above to complete parts​ (a) through​ (c).

a. Verify that the requirements for constructing a confidence interval about

ModifyingAbove p with caretp

are satisfied. Are the requirements for constructing a confidence interval about

ModifyingAbove p with caretp

​satisfied?

Yes

No

b. Construct a

9090​%

confidence interval for the population proportion of drug users who will report a headache as a side effect.The confidence interval is from

nothing

to

nothing .

​(Use ascending order. Round to three decimal places as​ needed.)

c. Interpret the confidence interval. Choose the correct answer below.

A.There is a

9090​%

chance that the true value of p will fall in the interval.

B.There is a

9090​%

chance that the true value of p will not fall in the interval.

C.We are

9090​%

confident that the interval actually does not contain the true value of p.of p.

D.We are

9090​%

confident that the interval actually does contain the true value of p.

Answer 1

Given that n= 320, X= 48 (a) P* - 480-15 320 (6) Yes because np (1-P) = 10 Sample size more than 5% of the pop" (c) (I Êt Zale P(1.2) - at a=0.10 1.0.5 10/= 1.645 from & 0.15 & 1.645 0.1s (1-0.15) 320 0.15 + 0.0328 [0.117] < P <0.183 Answer: option(o) (d)