Question: Testing claims about proportions: All hypothesis tests from sections 8-3 through 8-6 will be graded as follows:

In each question identify the…

 (a) correct statement of the null and alternate hypotheses (.8 points)

 (b) correct critical value(s) (.8 points)

 (c) correct calculation of test statistic (.8 points)

 (d) relevant p-value used to test the claim, (.8 points)

 (e) correct conclusion in the form of a statement about the null hypothesis and an analysis of results, where requested (.8 points).

In 1990, 5.8% of job applicants who were tested for drugs failed the test. At the 0.01 significance level, test the claim that the failure rate is now lower if a simple random sample of 1520 current job applicants results in 58 failures (based on data from the American Management Association). Does the result suggest that fewer job applicants now use drugs?

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document