# SOLUTION: The population mean waiting time of customers of the XYZ Burger chain is 3.4 minutes with a population standard deviation of 1.2 minutes. The customer service department found in a

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Finance -> SOLUTION: The population mean waiting time of customers of the XYZ Burger chain is 3.4 minutes with a population standard deviation of 1.2 minutes. The customer service department found in a      Log On

 Ad: Over 600 Algebra Word Problems at edhelper.com Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Word Problems: Money, Business and Interest Solvers Lessons Answers archive Quiz In Depth

 Question 352616: The population mean waiting time of customers of the XYZ Burger chain is 3.4 minutes with a population standard deviation of 1.2 minutes. The customer service department found in a sample of 50 customers that the mean waiting time was 3.2 minutes. At the 4% significance level, can we conclude that the mean waiting time is different from the population mean? Answer by stanbon(57290)   (Show Source): You can put this solution on YOUR website!The population mean waiting time of customers of the XYZ Burger chain is 3.4 minutes with a population standard deviation of 1.2 minutes. The customer service department found in a sample of 50 customers that the mean waiting time was 3.2 minutes. At the 4% significance level, can we conclude that the mean waiting time is different from the population mean? --------- Ho: u = 3.4 Ha: u is not 3.4 --------------------- x-bar = 3.2 --- t(3.2) = (3.2-3.4)/[1.2/sqrt(50)] = -1.1785 ---- p-value = 2*P(t< -1.1785 when df = 49) = 0.2443 --- Since the p-value is greater than 4%, fail to reject Ho. The test results support the Ho claim at the 4% significance level. Cheers, Stan H.