Mathematics, 20.12.2019 03:31 honeylebling
Suppose the mean wait-time for a telephone reservation agent at a large airline is 40 seconds. a manager with the airline is concerned that business may be lost due to customers having to wait too long for an agent. to address this concern the manager develops new airline reservation policies that are intended to reduce the amount of time an agent needs to spend with each customer. a random sample of 250 customers results in a sample mean of 39.3 seconds with a standard deviation of 42 seconds using alpha = 0.05 level of significance, do you believe the new policies were effective in reducing wait time? do you think the results have any practical significance?
determine the null and alternative hypotheses h_0: 40 seconds h_1: 40seconds calculate the test statistic t_0 = calculate the p- value. p-value = state the conclusion for the test. a. reject h_0 because the p-value is greater than the alpha = 0.05 level of significance. b. reject h_0 because the p-values is less than the alpha = 0.05 level of significance. c. do not h_0 because the p-value is less than the alpha = 0.05 level of significance. d. do not reject h_0 because the p-value is greater than the alpha = 0.05 level of significance. state the conclusion in context of the problem. there sufficient evidence at the alpha = 0.05 level of significance to conclude that the new politics were effective.
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Suppose the mean wait-time for a telephone reservation agent at a large airline is 40 seconds. a man...
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