Question

A blind taste test is conducted to determine which of two colas, Brand A or Brand B, individuals prefer. Individuals are randomly asked to drink one of the two types of cola first, followed by the other cola, and then asked to disclose the drink they prefer. Results of the taste test indicate that 49 of 100 individuals prefer Brand A. Complete parts a through c. (a) Conduct a hypothesis test (preferably using technology) Ho: p=Po versus Hippe for P=0.38, 0.39,0,40,...,0.58, 0.59, 0.60 at the at = 0.05 level of significance. For which values of Po do you not reject the null hypothesis? What do each of the values of Po represent? and inclusively. Do not reject the null hypothesis for the values of Po between (Type integers or decimals as needed.)

Answer 1

Sol: Gium data o49 951. Confidence nle val ca) at ob005 huo Haikd Critfcal value Z2AloS. IN V CO0512) =:960 towu Cound P P-P) n 049-960049(-0-49 100 = o49-0.097980 O.3920 lowe Bound 0-392 Bound = Pt z P C-/n) Upper 1 0.49+ 960 04l1-0-41) 100 OS879 Upper Bound o587 O.392 Po.S87 Scanned with CS CamScanner

as the Value:38 A not đte fnterval so we e seut 0. 38 in the inler val o we wl not As the value O.39 not Yejeu o-39 The Valte 0.S8 fa included in tte Sowe wel not sefeu o.S& AS the value s ia not in the intev val toue wl defeu o-59 Do not yefeut the nul hypotthipin fal the 0.58,nclusiuely Value of Po lbetween o.39 and Scanned with CS CamScanner