JonesandSmithseparatelyconductstudiestotest H0: = 500 against Ha: 500, eachwith n = 1000. Jonesgets y =

JonesandSmithseparatelyconductstudiestotest H0: μ = 500 against Ha: μ ≠ 500, eachwith n = 1000. Jonesgets y = 519.5, with se = 10.0. Smithgets y = 519.7, with se = 10.0.

(a) Showthat the P-valueis0.051forJonesand0.049forSmith.Using α = 0.050, foreach study indicatewhethertheresultis“statisticallysignificant.”Usingthisexample,explain the misleadingaspectsofnotreportingtheactual P-value.

(b) Useconfidenceintervalstoshowthat,inpracticalterms,thetwostudieshadverysimilar results.