Question

Name: Assignment 7 Instructions: Show ALL your work, attaching 1. (10 pts.) A random sample of 50 four-year-o an average of 53987 and the population wal of the true mean. Name: Assignment 8 For each of these hypothesis tests are 15 points each unless otherwise stated, SHOW a) your null and alternative hypotheses indicate which is the claim), b) the testing statistic-Z or T, c) the P-value, d) your decision about Ho, e) your decision about the claim. 1. The mean salary of federal government employees on the General Schedule is $59.593. The average salary of 30 state employees who do similar work is $58, 800 with a population standard deviation o = $1500. At a 0.01 level of significance, can it be concluded that state employees earn on average less than federal employees?

Answer 1

solutions : 1) La) Ho: l = 59,593 Hail L 59,593 (claim) (b, e test Z = X-4 = 58800 - 59593 Soo 30 1-2.90 (C) P-value = Plac-2.90) 0.0019 0.0019 (d) Resect Ho Because P-value ca(0.01) (6) There is sufficience evidence to support The claim that state employees earmon averase less than Federal omployees.