Multiple pictures taken to get the full question. Thank you. Queston Hep A 0 05

Question

Multiple pictures taken to get the full question. Thank you. Queston Hep A 0 05 significance leved is used for a hypothesis test of the claim that when parents use a paríicular method of gok barths, so the sample statistic of2stsi scoethst i 1 standd deviation abswe 0 Comlete parts() trougho selection, the proportion of tadhy gls is groater than 0 5 Assune that sangle dals consists of 55 gts in1 a lántity th rul hypothesis and te alerntivehypothesis Oose te conoct amwr below H p 05 b. What is the vale of a? a-D(Type an or a decinal ) C. What is the sampling distribution of the sample statistic? Normal distribution elek to select vour answers)

Explanation / Answer

Ans:

We will use Normal distribution,as sampling distribution of sample proportions.

Alpha=0.05

sample proportion=11/20=0.55

sample size,n=100

Right tailed test.

H0:p=0.5

Ha:p>0.5(claim)

Option B is correct.

Test statistic:

z=(0.55-0.5)/sqrt(0.5*(1-0.5)/100)

z=1

p-value=P(z>1)=0.1587

critical z value(right tailed)=1.64

area of the critical region=P(z>1.64)=0.05

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