Consider the situation described in the image above. The result of this is that their confidence interval will now be: Group of answer choices about 3 times wider pretty much unchanged about 1/9 as wide about 1/3 as wide about 9 times wider

The width of a confidence interval increases as the level of significance increases.Group of answer choicesTrueFalse

my budget for the study has been increased, so that i can take a sample of 3600 rather than the sample of 400 i was originally going to take!Consider the situation described in the image above. The result of this is that their confidence interval will now be: Group of answer choices about 9 times wider about 3 times wider pretty much unchanged about 1/3 as wide about 1/9 as wide

What happens to confidence intervals when you increase the level of confidence (or equivalently decrease the level of significance)?Select all that applyGroup of answer choicesConfidence intervals get narrowerConfidence intervals get widerWe are more confident that the true population mean is inside the intervalsWe are less confident that the true population mean is inside the intervals

Examine the following statements and then select the one statement that is correct.Group of answer choicesA wider confidence interval means less confidence in the estimate (all other things being equal).A narrower confidence interval is always better than a wider confidence interval.For a 95% confidence interval for a population mean, there is a 95% chance that the confidence interval includes the sample mean.The width of a confidence interval is affected by both the sampling error and the required level of confidence.

For confidence interval estimates, which of the following statements is FALSEGroup of answer choicesincreasing the sample size decreases the width of the confidence intervalusing a sample standard deviation instead of the population standard deviation always results in a wider confidence intervalthe width of the confidence interval increases as we demand more confidencea 95% confidence interval for the mean (with population standard deviation known) will be narrower than a 99% confidence interval