Question

A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 66 girls in 144 births, so the sample statistic of 11/24 results in a z score that is 1 standard deviation below 0.

a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below.

A.H0​:p=0.5

H1​:p>0.5

B. H0​: p≠0.5

   H1​: p=0.5

C.H0​: p=0.5

H1​: p<0.5

D.H0​: p=0.5

H1​: p≠0.5

b. What is the value of α​?

α=________

​(Type an integer or a​ decimal.)

c. What is the sampling distribution of the sample​ statistic?

Normal distribution

χ2

Student​ (t) distribution

d. Is the test​ two-tailed, left-tailed, or​ right-tailed?

___________

e. What is the value of the test​ statistic?

The test statistic is ____________

f. What is the​ P-value?

The​ P-value is _____________

g. What are the critical​ value(s)?

The critical​ value(s) is/are ________

h. What is the area of the critical​ region?

The area is ________

Answer 1