Hello I am unable to figure out from my textbook. pls if someone can help me, i am terrible with statistics and probability

1.

The central limit theorem states one of these statements that...

a. As sample sizedecreases, the distribution of sample means will approach the studentt-distribution

b. As sample sizedecreases, the distribution of sample means will approach thebinomial distribution

c. As sample sizeincreases, the distribution of sample means will approach the studentt-distribution

d. As sample sizeincreases, the distribution of sample means will approach thenormal distribution

e. As sample sizeincreases, the distribution of sample means will approach thebinomial distribution

2.

A researcher has wanted to test the hypothesis that childhood exposure to advertising exceeds 94 advertisements per day. Initially they intended to use a 0.10 significance level, but then later on they proceeded and had it changed to 0.05. As a final result...

a. the rejection region may become larger or smaller

b. the rejection region will become smaller

c. the rejection region will become larger

d. the rejection region will not change

e. there is no relation between the size of the rejection region and the significance level

2.

A 10 year old study from a person had concluded that children are quiet exposed to108 advertisements per day, on average. A researcher claims that this value has changed from the value it was 10 years ago than it is right now. The null hypothesisH0 can be expressed as the following ...

a. =108

b. =10

c. 108

d. 10

e. none of the above

A hypothesis can be a claim or a statement about which one ...

a. A Critical value

b. A Sample mean

c. A Population mean

d. A Sample standard deviation

e. A Level of significance

A doctor claims that patients that are using mainstream of medicine for a particular ailment recover faster than those using alternative medicine. A researcher tests the claim by the idea of comparing a sample of patients who had used mainstream medicine to a sample of the patients using the alternative medicine. They do not have any population data to use. So in this case the The researcher will need to conduct a:

a. Paired Two-Samplez-test

b. Paired Two-Samplet-test

c. Independent Two-Samplez-test

d. One samplet-test

e. Independent Two-Samplet-test