Question

A research center claims that at least 30% of aduits in a certain country think that their taes will be audited In a random sample of 1200 aduts in that country in a recent year, 25 % say they are concemed that their taxes will be audited At 0 10, is there encugh evidence to reject the center's daim? Complete parts (a) through (e) below claim and state H, and H (a) Idontfy ldentiy the deim in this scenerio Select the comect choice below and fill in the answer box to complete your choice. vpe an integar or a decimal Do not ound OA Lesthan % of edts in the country think that their teces will be audited B. At laast of aduits in tha country think that thair taxas will be audhed of adu ts in the country think that their taxes will be audited. The percentage of adulba in the country who think Uthat their texes will be suciled is not OC O D. Let p be the population proporfion of successes, where a success is an edult in the country who thinks thet their texes will be sudted Stale H, and H Select the correct choice below nd fil in the answer boxes to complele your choice. (Round to two decimal places as needed) B. Ho p H p> OE Hp H ps OA H p H p о. на р- H p H. p- O Hp Hpa

Answer 1

Here we have : P=0.30, n=1200, P-0.25", R30.10 claim: ra MB At least 130 % / of adults in the counting think du at their faxes will be audited.. Hypotesesi Hoi P >10.30 (cloim] Ha : P < 0.30 O correct option 4 Date of 650.10 I critical value: Zo = 20.10 = 1825.4.28 | DA Region of regection: 6 The reaction region is a z <1-1-28) < (C) Test statistic 2 test rejection resion -1-28 28 N N VPLIAD) 0.25 - 0-30 3.78] 1 0-3011-0130 ) Y 1200

ја) Не те ѕinсе 2<-1028, we redect the null hypomeni lho). conclusion : Rerect the null hypothesis. There is evidence to tredect the centre's claim. enous noun