The t statistic is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known; the population variance is estimated from the sample.
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Q5: The two sets of degrees of freedom
Q6: A two-tailed test is more conservative than
Q7: According to the text,samples drawn randomly from
Q8: According to the text,the t distribution is
Q9: For a large sample size,the t distribution
Q11: The most popular parametric test is the
Q12: The t statistic is calculated by assuming
Q13: Non-parametric tests are hypothesis testing procedures that
Q14: A z-test is a univariate hypothesis test
Q15: The F statistic is computed as the
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