Question

answer all these questions please with the right question number next to its letter

9-Test at the 0.01 level the statement that 55% (proportion) of those families who plan to purchase a vacation residence in Florida want a condominium. The null hypothesis is   π=.55   and the alternate is π≠.55    .

A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. Which of the following are correct?

A		p=.57; the critical values of z are +2.33 and -2.33; this is a two-tailed hypothesis test
B		p=.55; the critical value of z is +2.58; this is a one-tail hypothesis test
C		µ=.57; the critical values of z are +2.33 and -2.33; this is a two-tailed hypothesis test
D		None of the above

10-T Test at the 0.01 level the statement that 55% (proportion) of those families who plan to purchase a vacation residence in Florida want a condominium. The null hypothesis is π=.55   and the alternate hypothesis is π≠.55. .
A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. If computed z =.80Which of the following is correct?

	A	We can reject the null hypothesis (H0) accept the alternative hypothesis (H1)
	B	We cannot reject the null hypothesis (H0) accept the alternative hypothesis (H1)
	C	This is a one tail test of means
	D	This is a two tail test of means

Answer 1

A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. Which of the following are correct?

A

p=.57; the critical values of z are +2.33 and -2.33; this is a two-tailed hypothesis test

Test statistics <critical value, Fail to reject null hypothesis

A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. If computed z =.80Which of the following is correct?

B	We cannot reject the null hypothesis (H0) accept the alternative hypothesis (H1)