You cannot calculate a confidence interval if you do not know the population standard deviation.
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Q37: Given a 95% confidence interval, you would
Q38: You should use a 100% confidence level
Q39: Your population mean can change based upon
Q40: If you are computing a 95% confidence
Q41: If you randomly select a sample
Q43: The t-distribution was derived in order to
Q44: The shape of the t-distribution changes based
Q45: When n > 10, the z-distribution and
Q46: If you want to calculate a 99%
Q47: The margin of error generally refers to
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