question 7 DS 123 Use Problem I to answer questions 6-9 Problem 1. Do government
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question 7
DS 123 Use Problem I to answer questions 6-9 Problem 1. Do government employees take longer coffee breaks than private sector workers? That is a quest 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 th two populations are normally distributed EXAM 2 PAGE 2 Government Private Sector Employees 23 Workers 25 19 t-Test: Two-Sample Assuming Equal Variances Government Private Sector 21.5 Mean Variance Observations Pooled Variance 27.2 34 31 28 29 28888889 13.16666667 10 10 28 25 21 21 20 16 thesized Mean Difference df t Stat Pusat) one-tail 25 27 18 2.766352963 0.00636018 32 Critical one-tail1.734063062 0.012720359 2.100923666 21 P(Test) two-tail t Critical two-tail 6. Which is the best set of hypotheses for this experiment? 7. What is s (rounded to the thousandths place)? a) 13.167 a) 5.7 a) There is not enough evidence to support the consultant's claim that there is a difference in the length b) 18 c) 21.228 d) 29.289 8. What is the value of the test statistic? b) 2.766 c) 2.1009 d) 1.734 9. What implications should be drawn? b) There is enough evidence to support the consultant's claim that government employees take longer c) There is enough evidence to support the consultant's claim that there is a difference in the length of d) There is not enough evidence to support the consultant's claim that government employees take of time government employees and private sector workers take for coffee breaks. coffee breaks than private sector workers. time government employees and private sector workers take for coffee breaks. longer coffee breaks than private sector workers. Work spaceExplanation / Answer
7) here S2p is pooled variance the value of whcih from the given table =21.228
threfore option C is corect
plase revert if help required in other part.
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