When the Population Is Normally Distributed,population Standard Deviation $\sigma$ Is Unknown,and the Sample Size Is N = 15;the Confidence

question 3

Multiple Choice

When the population is normally distributed,population standard deviation $\sigma$ is unknown,and the sample size is n = 15;the confidence interval for the population mean µ is based on:

• A)The z (normal)distribution
• B)The t distribution
• C)The Binomial distribution
• D)The Poisson distribution
• E)None of the above

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