Question
Miranda runs a research study with N = 96. She runs a one-way independent groups ANOVA and carefully checks the assumptions. The Shapiro-Wilk test was
Miranda runs a research study withN= 96. She runs a one-way independent groups ANOVA and carefully checks the assumptions. The Shapiro-Wilk test was non-significant, but her colleague correctly informs her that she should also check the Normal Q-Q Plots. Why should she check these plots in addition to reporting the Shapiro-Wilk test results?
The Normal Q-Q Plots can also be used to check homogeneity of variances.
The Shapiro-Wilk test is best for sample sizes with unequal group sizes.
The Normal Q-Q plots are robust to outliers.
The Shapiro-Wilk test is best for sample sizes with fewer than 50 participants.
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Transportation A Global Supply Chain Perspective
Authors: John J. Coyle, Robert A. Novak, Brian Gibson, Edward J. Bard
8th edition
9781305445352, 1133592961, 130544535X, 978-1133592969
