Question

CENGAGE MINDTAP Search this course napter 9 Assignment ох eBook Consider the following hypothesis test: HO: 50 OH > 50 A sample of 50 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use a = .05. a. With I-52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? b. With I = 51, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? No ♡ c. With I = 51.8, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? Nog

Answer 1

G'ven Doto He 50 Sampe n50 , Standad devation a) 52.5-50 26 2.2 1314 O05 Tol=1.645 Zeitia am apper til est, tfe Ctic vae tfe value t ffe test stalshc tat Cavespob to an axea ef o- ticalvoue ejection vule fo a leuel y signfiance 242フ1-645 Reject o at .05 conclided tRat te Peput mem i 750 Yes b 51 51-S0 883 1-1314 eam i h conduded tfat populatio 60NO Fail to eject Ho beCause C881GHS 51-8 51 S-50 = 1.59 1314 Reject Ho Z159< IG4S He RRlaton moan is50 condded 40at Car i be NO

That : - filny ckan, kesp ruming Ha llt1G filing off standard, stop omd adjust modire Comple T D38 d O06 a) concuding 4ot Fling wehts 16 eunces chen tRe meon t actuoly sn't b) n 3 IG 1.96 1/38 5-6816.32 z1G 96 * 38 16to318 < 16.32 15.68 U165

Pt-5 15.60 -165 -0.82 -5 055 O1622 632-16 5 0 18 O-1622 P(iS-G& 632) P5.055 -l P (z -5.055)P (z -t) O01335 0.1335 Power o stotsti Cal et ahen te modhine is ovef o5 Ounces i - -0.1336 0.8665