Question

1.) The mayor of Clayton indicated in a news interview that the percentage of students studying nursing is at least 30%. For your project, you intend to test this claim. The correct setup of a hypothesis test for this situation is_____.

Question options:

a)	H0: p ≤ .30 Ha: p > .30

b)	H0: p ≥ .30 Ha: p < .30

c)	H0: p < .30 Ha: p ≥ .30

d)	H0: p > .30 Ha: p ≤ .30

2.)

n = 16	H0: μ ≥ 80
	= 75.607	Ha: μ < 80
	σ = 8.246

Assume the population is normally distributed.

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If a hypothesis test is done at a 2% level of significance, the null hypothesis should_____.

Question options:

a)	not be rejected

b)	be rejected

c)	be tested again

d)	Not enough information is given to answer this question.

3.) If you have a population with a variable that has a a sample variance of 50 from a sample of 15 elements, what is the 90% confidence interval of the standard deviation?

Question options:

a)	29.55 to 106.53

b)	5.18 to 11.15

c)	5.44 to 10.32

d)	4.18 to 15.07

PLEASE HELP!!! I don't know how to solve these problems.

Answer 1