Complaints about weekday airline flights not being on time average about 15 complaints per month at airports in small U. S. cities. The manager of the Countrytown airport took a random sample of months from their normally distributed population of monthly complaints about weekday arrivals not being on time. Since June 2011, her random sample of eleven months reveals that the number of complaints regarding weekday flights not being on time at the local Countrytown airport were:

7	8	10	12	13	14
14	15	16	17	17

The Countrytown airport is proud to advertise its claim that its average monthly number of complaints is fewer than the national monthly average for small city airports. Using the 0.05 significance level, does the data justify the Countrytown airport's claim?

Note: "MU" refers to the population mean.

Question 1

The correct statistical conclusion is:

Question 2

Using the 0.05 level of significance, does the data justify the local airport's claim? Explain your answer.Using the 0.05 level of significance, does the data justify the local airport's claim? (A) Answer either, "Yes" or "No". (B) Justify your answer from Part (A).