Question

1 )Imagine that you are conducting a poll to determine the percentage of adults who gamble at least once a month. As your sample size increases (let us say from 100 to 400 cases), which of the following becomes true?

A)Confidence interval becomes wider

B)Margin of error becomes smaller

C)Amount of sampling error increases

D)Margin of error increases

2)The reason that you would select the option that you did above is due to what is known as _____.

Answer 1

1) Answer here is

B)Margin of error becomes smaller

2)Reason for answer 1 is as below.

As the sample size increases, the margin of error decreases..

Increasing the sample size decreases the width of confidence intervals, because it decreases the standard error.

The reason that you would select the option that you did above is due to what is known as standard error.