The null and alternate hypotheses are: He: Ha so H1 Hd>0 The following sample information shows the number of defective units produced on the day shift and the afternoon shift for a sample of 4 days last month. 1 10 p-value Day 2 3 Day shift 12 15 Afternoon shift 8 9 12 At the 0.05 significance level, is there a difference in the mean number of citations given by the two shifts? a. What is the p-value? (Round your answer to 4 decimal places.) 4 18 17

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A: Thanks for the question :)And your upvote will be really appreciable ;)

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A: The standard deviation is $40.

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Q: In a random sample of twelve cell phones, the mean full retail price was $577.50 and the standard…

A: Sample Size,n = 12Sample Mean,x̄ = 577.50standard deviation,s = 217.00