Chi-Square test of independence, good-of-fit, homogenity or other stat test for

Question

Chi-Square test of independence, good-of-fit, homogenity or other stat test for the below situations

1. A brokerage firm wants to see whether the type of account a customer has (silver, gold, or platinum) affects the type of trades that customer makes (in person, by phone, or on the Internet). It wants to know if the type of account affects the size of the account (in dollars). It performs a test to see if the mean size of the acount is the same for the three account types. Choose best answer below

a.) use the chi-square goodness-of-fit test

b.) use the chi-square test of independence

c.) use the chi-square test of homogeneity

d.) use some other stat test because the counts are not independent

e.) use some other stat test because at least one of Account Type & Trade Type is quantitive

Explanation / Answer

Chi-squared independence

(one sample

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