If a researcher chooses a confidence level less than the 95%, which of the following occurs?

a. a smaller confidence interval that contains the population mean
b. a larger confidence interval that contain the population mean
c. a loss of precision in estimating the sample mean
d. a loss of precision in estimating the population mean


a. a smaller confidence interval that contains the population mean

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Roger Whittington was raised in an affluent, white, Protestant family and attended a private college preparatory school in the northeast. Roger is likely to have more difficulty than most Americans in acknowledging the existence of

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