When constructing a confidence interval for a sample proportion, the t distribution is appropriate if the sample size is small.
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Q9: When determining the sample size, n, if
Q10: The more variable that the population measurements
Q11: Assuming the same level of significance α,
Q12: When the level of confidence and sample
Q13: When the margin of error is added
Q15: When determining the sample size (n) for
Q16: When the level of confidence and the
Q17: When determining the sample size (n) for
Q18: When the population is normally distributed and
Q19: First, a 90 percent confidence interval is
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