Answer:
The increase in the level of confidence means that the interval will be wider.
Step-by-step explanation:
Margin of error of a confidence interval:
The margin of error of a confidence interval has the following format:
[tex]M = z\frac{s}{\sqrt{n}}[/tex]
In which z is related to the confidence level(if the confidence level increases z increases), s is related to the standard deviation and n is the sample size.
The higher the margin of error, the wider the interval is.
In this question:
Increasing the level of confidence will mean an increase in z, and thus, since M and z are directly proportional, the margin of error will increase, and the inteval will be wider.
