Answer to Question #315384 in Statistics and Probability for mariel

Question

1. What formula is used to determine the standard error of the mean when the

population variance is unknown?

2. What necessary formula should be used to find the mean of the sampling

distribution of the sample mean when the population variance is known?

3. What is the test variate used when the population variance is unknown and when

the population variance is known?

Answer 1

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