Which of the following is an assumption underlying the use of the t-d – McqOptions

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1.	Which of the following is an assumption underlying the use of the t-distribution ?
A.	The sample are drawn from a normally distributed population.
B.	The variance of the population is known
C.	All above
D.	s (sample standard deviation) is an unbiased estimate of the population variance.
Answer» B. The variance of the population is known

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