The table shows the prices for identical groceries at two online grocery delivery services, Amazon and Walmart.
Question:
The table shows the prices for identical groceries at two online grocery delivery services, Amazon and Walmart. Assume the sampling is random and the populations are Normal.
a. Give the data, would a two-sample t-test or a paired t-test be appropriate to test the hypothesis that the mean prices at the two delivery services are different? Explain.
b. Use the appropriate method to test the hypothesis. Use a significance level of 0.05.
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ANSWER a A twosample ttest would be appropriate to test the hypothesis that the mean prices at the t...View the full answer
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Related Book For 
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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