After Constructing a 95% Confidence Interval for a Population Mean

question 42

Multiple Choice

After constructing a 95% confidence interval for a population mean μ, you decide that the interval is too wide to be of any value.To correct this problem, you need to:

• A) increase the population size.
• B) increase the confidence level.
• C) increase the sample mean.
• D) increase the sample size.

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