The t distribution is used to calculate a confidence interval when the population is normally distributed and the population standard deviation is known.
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Q4: The Student's t distribution has a mean
Q5: With other factors unchanged,a lower confidence level
Q6: If a sample has 16 observations
Q7: The more certain we wish to be
Q8: The sample statistic s is an
Q10: In determining the necessary sample size in
Q11: A 95% confidence interval means that there
Q12: A confidence interval will allow us to
Q13: If the population mean
Q14: If the population mean
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