In: Statistics and Probability
1. A survey of 436 workers showed that 192 of them said that it was seriously unethical for employers to monitor employee emails without their knowledge. When a random sample of 121 senior-level executives were surveyed, 40% of them agreed with the employees, Use a 5% significance level to test the claim that the proportion of employees that feel that monitoring employee emails is seriously unethical is greater than the proportion of executives that share this view.
a. What is the point estimate for the population proportions?
b. Whatistheteststatistic?
c. Set up the “Ho” and “Ha” statements.
d. Draw the bell curve; find the critical values.
e. What is your conclusion? Explain.
2. Using the data from #1, and a 90% confidence level
a. What is the maximum error?
b. What is the point estimate?
c. Construct the 90% confidence interval for the difference between the population proportions.