The statistic 
when the sampled population is normal is Student t-distributed with n degrees of freedom.
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Q6: If a sample has 18 observations
Q7: In estimating the population mean with the
Q8: If a sample has 15 observations
Q13: The t-distribution assumes that the population is
Q14: In forming a 95% confidence interval for
Q15: In order to determine the p-value
Q37: The t distribution is used to develop
Q46: The t distribution allows the calculation of
Q52: The chi-squared distribution can be used in
Q57: A condition of using the chi-squared test
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