1. Which test For each of the following situations,

Chapter 26, Problem 1

(choose chapter or problem)

1. Which test? For each of the following situations, statewhether youd use a chi-square goodness-of-fit test, a chisquaretest of homogeneity, a chi-square test of independence,or some other statistical test:a) A brokerage firm wants to see whether the type ofaccount a customer has (Silver, Gold, or Platinum)affects the type of trades that customer makes (in person,by phone, or on the Internet). It collects a randomsample of trades made for its customers over the pastyear and performs a test.b) That brokerage firm also wants to know if the type ofaccount affects the size of the account (in dollars). Itperforms a test to see if the mean size of the account isthe same for the three account types.c) The academic research office at a large communitycollege wants to see whether the distribution ofcourses chosen (Humanities, Social Science, or Science)is different for its residential and nonresidentialstudents. It assembles last semesters data and performsa test.