Question

Which confidence level would produce the widest interval when estimating the mean of a population based on the mean and standard deviation of a sample of that population? NO LINKS!!!
a. 99%
b. 80%
c. 95%
d. 90%​

Answer 1

Answer:  A) 99%

Explanation:

The larger the confidence level, the wider the confidence interval gets. Choice A provides the largest such confidence level.

It's like trying to catch an elusive fish. The wider the net, the more confident that you are likely to catch the fish. The size of the net can be a sort of measure of the confidence level.

Answer 2

• Confidence level be x
• Wideness of interval be y

The relation is

$\\ \rm\Rrightarrow x\propto y$

Higher the confidence level wider the interval.

So option A i.e 99% is correct