Situation:
The general manager of a major league baseball team believes that the distribution of the tickets sold varies based on the age of the ticket purchaser.
Action:
Using the chi-square goodness of fit test and either Excel or Minitab, determine whether age varies among ticket purchasers. Use a .01 level of significance and the following observed frequencies of ticket purchasers. Use the hypothesis testing procedure appropriate for this problem to help you make a decision.
Age of Purchaser Frequency
Under 20 16
20 to under 30 44
30 to under 40 61
40 to under 50 56
50 to under 60 35
Over 60 19