9.50. t test and and retail; Many communities worldwide are lamenting the effects of so-called big-box...

9.50. t test and and retail; Many communities worldwide are lamenting the effects of so-called big-box retailers (eg. Walmart) on their local communities, particularly on small, independent owned shops. Do these large stores affect the bottom lines of locally owned retailers? Imagine that you decide to test this premise. You assess earnings at 20 local stores for the month of October, a few month before a big box store opens. you then assess earnings the following October, correcting for inflation.

A. what are the two population?

B. what is the comparison distribution? Explain

C. Which hypothesis test you would you use

D. check the assumption test for this hypothesis test

E. what is one flaw in drawing conclusion from this comparison from this comparison over time?

f. state the null and research hypothesis in both words and symbols.

Thank you.

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