When the level of confidence and sample standard deviation remain the same, a confidence interval for a population mean based on a sample of n = 100 will be narrower than a confidence interval for a population mean based on a sample of n = 50.
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Q1: When the level of confidence and sample
Q2: The quantity Q3: The t distribution always has n degrees Q4: When solving for the sample size needed Q6: When determining the sample size (n) for Q7: If σ is unknown and there is Q8: The standard error of the sample mean Q9: When determining the sample size, n, if Q10: The more variable that the population measurements Q11: Assuming the same level of significance α,
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