Dana wants to compare the grade-point averages (GPAs) for freshman, sophomore, junior, and senior sociology students. If

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Dana wants to compare the grade-point averages (GPAs) for freshman, sophomore, junior, and senior sociology students. If she chooses not to use an ANOVA,

a. how many unpaired two-sample t-tests will she need to conduct?

b. what would be her experimentwise Type I error if she makes each test have an α value of .05?

c. what would be her testwise Type I error if she performs a Bonferroni correction in order to maintain the experimentwise Type I error rate at .05?

d. what would be her testwise Type I error if she performs a Bonferroni correction in order to maintain the experimentwise Type I error rate at .01?

e. What would be the advantages of performing an ANOVA compared to performing a number of unpaired two-sample t-tests?

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a She will need to conduct four unpaired twosample ttests b Her experimentwise Type I error w...View the full answer

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Statistics For The Social Sciences A General Linear Model Approach

ISBN: 9781107576971

1st Edition

Authors: Russell T. Warne

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Question Posted: Aug 11, 2020 03:23 AM

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Dana wants to compare the grade-point averages (GPAs) for freshman, sophomore, junior, and senior sociology students. If

Question:

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a She will need to conduct four unpaired twosample ttests b Her experimentwise Type I error w...View the full answer

Statistics For The Social Sciences A General Linear Model Approach

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