5yearsandastandarddeviationof124

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Unformatted text preview: 5%levelofsignificance.Ifthe researcherdoesnotacceptthishypothesis,itisbecause a) Theresearcherbelievesthenullhypothesisistrue b) Thep ­valuewaslessthan0.05 c) Thesamplewastoobig d) Theteststatisticwaslessthan 1.960 e) NoneoftheAbove         Times 11) Wewishtodemonstratethattheaveragetimeittakestocompleteasimpleassemblylinetask isnowlessthan10minutes.Inordertotestthishypothesisata2%levelofsignificancewe haveobtainedasimplerandomsampleof200tasktimes.Weobtainasamplemeantimeof9.2 minuteswithastandarddeviationof3.2minutes.WetestthealternativehypothesisHa:µ<10. ReferringtoTimes,whatis/arethecriticalvalue(s)?         12) Referringt...
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