# Question: Refer to Exercise 11 46 A financial analyst has determined that

Refer to Exercise 11.46. A financial analyst has determined that a 2-minute reduction in the average break would increase productivity. As a result the company would hate to lose this opportunity.

Calculate the probability of erroneously concluding that the renovation would not be successful when the average break is 30 minutes. If this probability is high, describe how it can be reduced.

Calculate the probability of erroneously concluding that the renovation would not be successful when the average break is 30 minutes. If this probability is high, describe how it can be reduced.

## Relevant Questions

A school-board administrator believes that the average number of days absent per year among students is less than 10 days. From past experience, he knows that the population standard deviation is 3 days. In testing to ...a. A statistics practitioner calculated the mean and standard deviation from a sample of 51. They are x̄ = 120 and s = 15. Estimate the population mean with 95% confidence.b. Repeat part (a) with a 90% confidence level.c. ...a. To test the following hypotheses, a statistics practitioner randomly sampled 100 observations and found x̄ = 106 and s = 35. Calculate the test statistic (and for Excel users, the p-value) of a test to determine whether ...a. Test the following hypotheses with α = .05 given that x̄ = 405, s = 100, and n = 1,000.H0: µ = 400H1: µ > 400b. Repeat part (a) assuming that you know that the population standard deviation is σ = 100.c. Explain why ...Traffic congestion seems to worsen each year. This raises the question, how much does roadway congestion cost the United States annually. The Federal Highway Administration’s Highway Performance Monitoring System conducts ...Post your question