Question: A paired sample study has been conducted to determine whether two populations have equal means. Twenty paired samples were obtained with the following sample results:

populations have equal means. Twenty paired samples were obtained with the following

A paired sample study has been conducted to determine whether two populations have equal means. Twenty paired samples were obtained with the following sample results: d = 5.5 30 = 11 Based on these sample data and a significance level of 0.05, what conclusion should be made about the population means? O a. do not reject the null hypothesis O b. reject the null hypothesis O c. non of them O d. reject the alternative hypothesis

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