Do government employees take longer coffee breaks titan private sector workers?

Question

Do government employees take longer coffee breaks titan private sector workers? That is a question that interested a management consultant To examine the issue, he took a random sample of ten government employees and another random sample of ten private sector workers and measured the amount of time (in minutes) they spent in coffee breaks during the day. The results and analysis are shown below. Assume that the two populations are normally distributed. Which is the best set of hypotheses for this experiment? a. H_0: x bar_G - x bar_P = 0 H_1: x bar_G - x bar_y notequalto 0 b). H_0: mu_G - mu_P = 0 H_1: mu_G - mu_P notequalto 0 c. H_0: mu_G - mu_P greaterthanorequalto 0 H_1: mu _G - mu_P 0 What is s^2_P a) 13.16 b) 18 c) 21.228 d)29.289

Explanation / Answer

12) Null hypothesis will always contain equality sign and this is a one tailed test.

Ho: G - p 0

H1: G - p > 0

13) Given pooled variance as 21.2277778

So, round off becomes 21.228

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