Question

Assuming that the population variances are equal, is there evidence that the overall score of pharm is greater than grocery-store pharmacies (a.05)? a) State the null hypothesis b) State the alternative hypothesis c) What critical values should be used? d) What is the test statistic? e) What is the p-value? a) b) c) d) e) eaning of the p-value be rejected g) h) g) Should the nu h) What is the conclusio ) State one of the assumption j) State the total degrees of freedom May 8, 2019 red the overall scores of pharmacies. The results of the top 7 rated detergents are shown Chain Pharmacies Pharmacies 82 83 91 84 81 84 Data Hypothesized Difference Level of Significance 0.05 Population 1 Sample (Chains) Sample Size Sample Mean Sample Standard Deviation ア 85.14285714 2.340126167 Population 2 Sample (Grocery) Sample Size Sample Mean 7 90.28571429 2 214669706 Sample Standard Deviation Intermediate Calculations Population 1 Sample Degrees of Freedom Population 2 Sample Degrees of Freedom Total Degrees of Freedom Pooled Variance Standard Error Difference in Sample Means Test Statistic 6 6 12 5.1905 1.2178 5.1429 4.2231 Test 1.7823 Upper Critical Value 0.9994 Value Source-Consumer Reports, "Ratings: Pharmacy Favorites", March 2019, p.48.

Answer 1

Chauis equal to tue stae pharmacis agauist -q-a,ード。 gkti ↓te.est, tn,t na-2コ+,2. The -kok n, ド礼却 ) o S, 12) , 13、35ㄱ 13.3s 7 x2/1 13.357 0. 1537 p-value >#0.05 not Hence use.nyeck Ho