of A very large company is interested in its employees' productivity. The company reports from its historical data that

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Of A Very Large Company Is Interested In Its Employees Productivity The Company Reports From Its Historical Data That 1 (37.82 KiB) Viewed 109 times

of A very large company is interested in its employees' productivity. The company reports from its historical data that its employees spend a mean minutes per employee (on a typical day) dealing with email. To test this claim, an independent consultant chooses employees at random and finds that those employees spend a sample mean of u minutes dealing with email, with a sample standard deviation of 12 minutes. Assume that the population of amounts of time employees spend dealing with email is approximately normally distributed. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the level of significance, to reject the claim that the mean number of minutes employees spend dealing with email, is equal to 127 (a) State the nullhvasthesis, and the alternative hypothesis that you would use for the test. M 40 Perform a test and find the Here is some information to help you with your test. • The value of the test statistic is given by y • The p-value is two times the area under the curve to the right of the value of the test statistic. 'Di m Based on your answer to part (b), choose what can be concluded, at the e level of significance, about the claim made by the company. Since the p-value is less than (or equal to) the level of significance, the null hypothesis is rejected. So, there is enough evidence to reject the claim that the mean number of minutes employees spend dealing with email is equal to 12 Since the p-value is less than (or equal to) the level of significance, the null hypothesis is not rejected. So, there is not enough evidence to reject the claim that the mean number of minutes employees spend dealing with email is equal to u Since the p-value is greater than the level of significance, the null hypothesis is rejected. So, there is enough evidence to reject the claim that the mean number of minutes employees spend dealing with email is equal to Since the p-value is greater than the level of significance, the null hypothesis is not rejected. So, there is not enough evidence to reject the claim that the mean number of minutes employees spend dealing with email is equal to 11 MBOO