Answered

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using a random sample from a population, isla cannot decide if she wants to construct a 95 percent confidence interval for the population mean or a 99 percent confidence interval for the population mean. what is the difference between the two confidence intervals?

Sagot :

The difference between the two confidence intervals is given as follows :

Width of confidence interval is directly proportional to confidence level.

This is because,  width is directly proportional to critical value (z or t), which is directly proportional to confidence level.

Now, width is inversely proportional to square root of sample size.

But if sample size is same for both levels of confidence. Then, sample size would have same effect.

Hence, the appropriate answer here is,

The 95 percent confidence interval will not be as wide as the 99 percent confidence interval.

To learn more about critical value click here:

brainly.com/question/14508634

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