Question

Question Help A certain drug is used to treat asthma. In a clinical trial of the drug. 20 of 299 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 3% 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. 17-Dropuler prop<0.33 2--0.835E25271 p=0.2016028797 -0.066895321 -29 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? 2 (Round to two decimal places as needed.)

Answer 1

Solution :

From this statistical output ,

(a)

This is the left tailed test .

(b)

z = -0.84