Performing a Chi-Square Goodness-of-Fit Test In Exercises 7−16, (a) identify the claim and state H0 and Ha, (h) find the critical value and identify the rejection region, (c) find the chi-square test statistic, (d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
14. Money Management The pie chart shows the results of a survey in which married U.S. male adults were asked how much they trust their spouses to manage their finances. A financial services company claims that the distribution of how much married U.S. female adults trust their spouses to manage their finances is the same as the distribution given for married U.S. male adults. To test this claim, you randomly select 400 married U.S. female adults and ask each how much she trusts her spouse to manage their finances. The table shows the results. At α = 0.10, test the company’s claim. (Adapted from Country Financial)
Survey results | |
Response | Frequency, f |
Completely trust | 243 |
Trust with certain | 108 |
aspects | |
Do not trust | 36 |
Not sure | 13 |
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Elementary Statistics: Picturing the World (7th Edition)
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