What happens to the margin of error if the confidence level increases with a confidence interval for p? a

What happens to the margin of error if the confidence level increases with a confidence interval for p?

a. the margin of error would not change

b. the margin of error increases

c. the margin of error decreases

Does the value of the test statistic move closer to 0 or further from 0 if you increase the sample size n in a hypothesis test for p?

a. the test statistic moves further from zero

b. the test statistic moves closer to zero

What is the worst-case scenario value of p^ that makes the standard error and the margin of error as large as possible?

a. .5

b. 1

c. 1 or 0

d. 0