The site www.golfsmith.com receives an average of 6.5 returns per day from online shoppers. For a sample of 12 days, it received the following number of returns: 0 4 3 4 9 4 5 9 1 6 7 10 At the 0.05 significance level, can we conclude the mean number of returns is less than 6.5?
Added by Daniel M.
Step 1
The first step is to state the null hypothesis and the alternative hypothesis. Null hypothesis: μ = 6.5 (The mean number of returns is 6.5) Alternative hypothesis: μ < 6.5 (The mean number of returns is less than 6.5) Show more…
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Egolf.com receives an average of 6.5 returns per day from online shoppers. For a sample of 12 days, they received the following number of returns. $$\begin{array}{llllllllllll}0 & 4 & 3 & 4 & 9 & 4 & 5 & 9 & 1 & 6 & 7 & 10\end{array}$$ At the .01 significance level, can we conclude the mean number of returns is less than $6.5 ?$
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