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Determine what will happen to the resulting confidence interval for the given scenario, if the proposed changes are made (assume each change is made independently

Determine what will happen to the resulting confidence interval for the given scenario, if the proposed changes are made (assume each change is made independently to the original scenario): In order to estimate a population mean, a sample mean of 34.2 is collected from a sample of size n = 60, and the margin of error is computed to be 2.9 at the 5% level of significance.

The resulting confidence interval for the population mean is 31.3 < < 37.1. a. The level of significance is increased to 10% The width of the confidence interval increases. The width of the confidence interval decreases. b. A 99% confidence level is used The width of the confidence interval increases. The width of the confidence interval decreases.

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