Question: From a population that is not normally distributed and whose standard deviation is not known, a sample of 6 items is selected to develop an

From a population that is not normally distributed and whose standard deviation is not known, a sample of 6 items is selected to develop an interval estimate for the mean of the population ().

a. Thetdistribution with 5 degrees of freedom must be used.

b. The sample size must be increased.

c. Thetdistribution with 6 degrees of freedom must be used.

d. The normal distribution can be used.

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