A 0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of genderselection, the proportion of baby girls is greater than 0.5. Assume that sample data consists of 78 girls in 144 births, so the sample statistic of 13/24 results in a z score that is 1 standard deviation above 0. Complete parts(a) through(h) below.

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

A.

Upper H0: p0.5

Upper H1: p>0.5

B.

Upper H0: p=0.5

Upper H1: p<0.5

C.

Upper H0: p=0.5

Upper H1: p0.5

D.

Upper H0: p=0.5

Upper H1: p>0.5

b. What is the value of alpha ?

.01 (Type an integer or adecimal.)

c. What is the sampling distribution of the samplestatistic?c. What is the sampling distribution of the samplestatistic?

chi squared

2

Student(t) distribution

Normal distribution

d. Is the testtwo-tailed, left-tailed, orright-tailed?

Two-tailed

Left

Left-tailed

Right

Right-tailed

e. What is the value of the teststatistic?

The test statistic is

nothing

. (Type an integer or adecimal.)

f. What is theP-value?

TheP-value is

nothing

. (Round to four decimal places asneeded.)

g. What are the criticalvalue(s)?

The criticalvalue(s) is/are

nothing

.

(Round to two decimal places as needed. Use a comma to separate answers asneeded.)

h. What is the area of the criticalregion?

The area is

nothing

. (Round to two decimal places asneeded.)