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For each of the following situations, select the type of test that should be use

ID: 2936027 • Letter: F

Question

For each of the following situations, select the type of test that should be used. (Two sample t-test, ANOVA, Chi-square test of homogenity, chi-square test of independence or chi-square test of goodness of fit)

A researcher wants to find out whether education level (some high school, high school graduate, college graduate, or advanced degree) is related to the type of transaction most likely to be conducted using the internet (shopping, banking, travel reservations, or auctions).

The academic research office at a large community college wants to see whether the distribution of courses chosen (Humanities, Social Science, or Science) is different for its residential and nonresidential students.

A brokerage firm wants to know if the type of account affects the size of the account (in dollars). It will compare the mean size of the account for three different account types.

A car manufacturer wants to see if the quality of a car is affected by what day it was built. It will examine warranty claims to determine if defects are equally distributed across the days of the work week.

A researcher for the American Booksellers Association wants to know if retail sales per square foot is related to serving coffee or snacks on the premises. She examines a database of independently owned bookstores to determine if retails sales (in dollars/sq.ft.) is related to whether or not the store has a coffee bar.

A researcher wants to find out whether education level (some high school, high school graduate, college graduate, or advanced degree) is related to the type of transaction most likely to be conducted using the internet (shopping, banking, travel reservations, or auctions).

The academic research office at a large community college wants to see whether the distribution of courses chosen (Humanities, Social Science, or Science) is different for its residential and nonresidential students.

A brokerage firm wants to know if the type of account affects the size of the account (in dollars). It will compare the mean size of the account for three different account types.

A car manufacturer wants to see if the quality of a car is affected by what day it was built. It will examine warranty claims to determine if defects are equally distributed across the days of the work week.

A researcher for the American Booksellers Association wants to know if retail sales per square foot is related to serving coffee or snacks on the premises. She examines a database of independently owned bookstores to determine if retails sales (in dollars/sq.ft.) is related to whether or not the store has a coffee bar.

Explanation / Answer

Ans:

1)A researcher wants to find out whether education level (some high school, high school graduate, college graduate, or advanced degree) is related to the type of transaction most likely to be conducted using the internet (shopping, banking, travel reservations, or auctions).

chi-square test of independence

2)The academic research office at a large community college wants to see whether the distribution of courses chosen (Humanities, Social Science, or Science) is different for its residential and nonresidential students.

Chi-square test of homogenity

3)A brokerage firm wants to know if the type of account affects the size of the account (in dollars). It will compare the mean size of the account for three different account types.

ANOVA

4)A car manufacturer wants to see if the quality of a car is affected by what day it was built. It will examine warranty claims to determine if defects are equally distributed across the days of the work week.

chi-square test of goodness of fit

5)A researcher for the American Booksellers Association wants to know if retail sales per square foot is related to serving coffee or snacks on the premises. She examines a database of independently owned bookstores to determine if retails sales (in dollars/sq.ft.) is related to whether or not the store has a coffee bar.

chi-square test of independence

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