In an initial drugs test, 5.8% of job applicants tested negative. It is claimed that now the rate is lower. A random sample of 1520 current job applicants ended in 58 negative results. 1. Construct a 95% confidence interval for p, the true proportion of negative results in the population (classical form). 2. Conduct a statistical test of hypothesis on this claim at the 0.01 level of significance, by the following 5 steps. Step 1. Hypotheses and significance level: Ho: Ha: a = Step 2. Test Statistic and its sampling distribution under Ho: Step 3. Observed value of the test statistic: Step 4. P-value under Ho: Step 5. Decision and conclusion (interpretation of the result):

In an initial drugs test, 5.8% of job applicants tested negative. It is claimed that now the rate is lower. A random sample of 1520 current job applicants ended in 58 negative results. 1. Construct a 95% confidence interval for p, the true proportion of negative results in the population (classical form). 2. Conduct a statistical test of hypothesis on this claim at the 0.01 level of significance, by the following 5 steps. Step 1. Hypotheses and significance level: Ho: Ha: a = Step 2. Test Statistic and its sampling distribution under Ho: Step 3. Observed value of the test statistic: Step 4. P-value under Ho: Step 5. Decision and conclusion (interpretation of the result):

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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