REAPR6343 REAPR6343

30-05-2023
Mathematics

contestada

In performing hypothesis tests about the population mean, if the population standard deviation is not known, a t test can be used to test the mean if _________________.

a. n is small

b. the sample is random

c. the population mean is known

d. the population is normally distributed

e. the population is chi-square distributed.

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