PLease help me for this questions

1.) The null and alternative hypotheses are given. Determine whether the hypothesis test isleft-tailed, right-tailed, ortwo-tailed. What parameter is beingtested?

H0: =7

H 1: 7

2.)What type of test is being conducted in thisproblem?

a. Right-tailed test

b. Left-tailed test

c.Two-tailed test

3.) The null and alternative hypotheses are given. Determine whether the hypothesis test isleft-tailed, right-tailed, ortwo-tailed. What parameter is beingtested?

H0: p=0.2

H1: p<0.2

a.Two t-tailed test

b.Right-tailed test

c. Left-tailed test

4.) The null and alternative hypotheses are given. Determine whether the hypothesis test isleft-tailed, right-tailed, ortwo-tailed. What parameter is beingtested?

H0: =130

H1: >130

Is the hypothesis testleft-tailed, right-tailed, ortwo-tailed?

a.Two t-tailed test

b.Right-tailed test

c. Left-tailed test

5.) Determine the null and alternative hypotheses

The standard deviation in the pressure required to open asprung-type valve is =0.6.

Thequality-control manager feels that the pressure variability has increased.

(a) Which of the following is the hypothesis test to beconducted?

a. H0: =0.6; H1: 0.6

b. H0: =0.6; H1: >0.6

c.H0: =0.6; H1: <0.6

6.) Determine the null and alternative hypotheses

Six yearsago, 12.9% of registered births were to teenage mothers. A sociologist believes that the percentage has decreased since then.

A). Which of the following is the hypothesis test to beconducted?

a. H0: p=0.129, H1: p>0.129

b. H0: p=0.129, H1: p0.129

c. H0: p=0.129, H1: p<0.129

7.)Determine the null and alternativehypotheses,

Six yearsago, 11.8% of registered births were to teenage mothers. A sociologist believes that the percentage has decreased since then.

(A) Which of the following is the hypothesis test to beconducted?

a. H0: p=0.118, H1: p0.118

b. H0: p=0.118 H1:p<0.118

c. H0: p=0.118 H1:p>0.118

8.) Determine the null and alternative hypotheses

Three yearsago, the mean price of asingle-family home was 243,800. A real estate broker believes that the mean price has increased since then.

(A) Which of the following is the hypothesis test to beconducted?

a.H0: =243,800; H1: <$243,800

b. H0: =$243, 800; H1;:>$243,800

c.H0: =$243,800; H1: $243,800