The Greater Pittsburgh Area Chamber of Commerce wants to estimate the mean time workers who commute to downtown spend getting to work. A sample of 15 workers reveals the following number of minutes traveled: 29 38 38 33 38 21 45 34 40 37 37 42 30 29 35
a. For a 98 percent confidence interval for the population mean, what are the high and low values? (Answers to 2 decimal places) to
b. Is it reasonable to conclude that the population mean is less than 30 minutes? Is it reasonable to conclude that the population mean is 39 minutes? (Yes or No)
Mean < 30 minutes?
Mean = 39 minutes?