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1 July, 01:56

A research firm wants to determine whether there’s a difference in married couples between what the husband earns and what the wife earns. The firm takesa random sample of married couples and measures the annual salary of each husband and wife. What procedure should the firm use to analyze the data for the mean difference in salary within married couples?

a) One-sample t procedure, matched pair

b) Two-sample t procedure

c) One-sample z procedure, matched pair

d) Two-sample z procedure

e) Not enough information to determine which procedure should be used.

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  1. 1 July, 02:17
    0
    Two sample t procedure

    Step-by-step explanation:

    The reason for using the two sample t procedure is that it is mention in the statement that the firm takes a random sample of married couples and measure their annual salary and standard deviations are unknown and they are estimated by using the collected sample of data. Also there are two population in the data. Population one is the annual salary of husband and population two is the annual salary of wife and these are compared using two sample t procedure.
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