## Question

###### Slep Dy slepFor each problem; please stale the Jort alternative hypotheses; wrile declsion rule rejecting the null hypothesis; (â‚¬) calculate the appropriate statistic Ise in deciding whether reject the null hypothesis (show all calculattons} (d) state Yowr decision a5 uuhetler= reject the null hypothesis; and (e) state conclurion that the investigator entitled drdw: Use alpha level of .05 for relebant calculatlons First ycar college students New York reqfiged Uake an intelligence test; Iean L

Slep Dy slep For each problem; please stale the Jort alternative hypotheses; wrile declsion rule rejecting the null hypothesis; (â‚¬) calculate the appropriate statistic Ise in deciding whether reject the null hypothesis (show all calculattons} (d) state Yowr decision a5 uuhetler= reject the null hypothesis; and (e) state conclurion that the investigator entitled drdw: Use alpha level of .05 for relebant calculatlons First ycar college students New York reqfiged Uake an intelligence test; Iean L.Q. score for all students Lking the test is 108. The mean of a smple 0f 45 sludente from New York University 3. The standard deviation of the population the mean of college students fromn New York University signifieantly different from the Iean of all first year college sturdents New Yotk? The tean number of how many curs one has wned for the population of people living the U.S.is 5.7. An invesligator predicls that the mean number of people who own Cars cities will be significantly Iess than Ie In Fennl population. The mean number people wto own cars cities samnic Oi people 6.5. The standard deviation of scores in this sample = Do Ihese dulu $upport the investigator $ prediction? In the state of Califomia; third graders get Wvcrlec SCOIl 0f 20 relding test (higher corcs Fcnee higher levels Perlormance) Iccher USIng * ncw mcthod 5 (ejch reading She predicls that by the end of the third grade, students getting her new mcthod significantly highcr Scofes reading than those tnc populalon mcan oftthe sludeni her class and dhe standard devialion ot the students the cluss It is predicted that overull job sulisliction for employees Iuec compinies will be 'significantly lower than the mean job suistiction the entire population cmplovecs , Thc mcan 0f this populalion 0n 4 mcasure of joh uisluction 48,55 (higher scofes rellect higher Ievels xusuction) The mean of 4 <uple of 38 employees from Ltpc comnanics 51,23 The stundard devintion ofuhis $mple Do the data provide supPOrt for the: rescearcher'$ prediction?