Question

QUESTION 10 See question below: 0. The established mean for the number of copies a customer makes per visit at a copy store is 37. A store employee claims the actual number of copies made per visit is less. A sample of 72 customers was taken and showed an average of 30 copies per customer. The population standard deviation is known to be 25 copies. At alpha 0.01, test the employee's claim. For question #10 (answer goes directly below), select the alternative hypothesis from choices given. For question #11 , enter your calculated (Z, 1,or chi-square) value For question #12, convert your answer from #11 to a P-Value and place it in the space provided. For question # 13, answer True or False as to the rejection of the null hypothesis. 40

Answer 1

Co) state the hypolheses: The nst step is to tate the hy pothesis and ypolhes hepothesis 3 Alternatve hy polhesis u<3 alteranakve null an SiS Null Note thet these ta:led test hy po hests tenshhute 20 one Formulate onaly srs plan: an STS signFrcon ce For this the level The tast me hod is 2 - test O.01 3omple a one We Wil normal distrtbtion Use be cause Jample Si2e Jreater han 30 and peulation standad deviatron iS know

Analy 2.0 ample data: osn9Sample cdala, wle compute the standaid eryor CSE) Z. stalistc-test statist;c C2) S SE= 2. 4 628 CIN 30-33 Cx-u) 2-94622 SE 2 -2.38 standmd deviation of Where S PS the of Sample sample the X S mean y pothesis peplattorn Sdple S the n is the Sile C122 observed Sample statistre test statstha off-2-38 The paoduced mean a 2

the p-value in hès analss Thus (13) False Interpret results. Since p-Value greates hon ihe e get failed hy pothesis C-014 Cance levelo -o l to rej ect the null We faled to reject the nul) hypathesis