Question

According to a polling organization, 21% of adults in a large region consider themselves to be liberal. A survey asked 200 respondents to disclose their political philosophy: Conservative, Liberal, Moderate. Treat the results of the survey as a random sample of adults in this region. Do the survey results suggest the proportion is higher than that reported by the polling organization? Use an a=0.05 level of significance. Click the icon to view the survey results. the requirements for Because np. (1-Po) = 33.2 > 10 the sample size is less than 5% of the population size, and the sample is given to be random testing the hypothesis are satisfied (Round to one decimal place as needed.) Identify the null and alternative hypotheses for this test. Let p represent the population proportion of adults in this region who consider themselves to be liberal. Ho versus H, (Type integers or decimals. Do not round.

Answer 1

null Hypothesis:              Ho:   p=		0.210
alternate Hypothesis:    Ha: p >		0.210

2)

d)

here this is binomial with parameter n=17 and p=0.48

p value =P(11 or more with letter A,B and C)=P(X>=11)=1-P(X<=10)=

1-∑x=0x-1   (nCx)px(q)(n-x) =

0.128