To use the t distribution for a small sample size when deriving a confidence interval requires that the population be normally distributed.
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Q2: A 0.95 confidence coefficient is equivalent to
Q3: A confidence interval is an estimate for
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
Q9: The t distribution is used to calculate
Q10: In determining the necessary sample size in
Q11: A 95% confidence interval means that there
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