Question

If random samples, each with n = 36 scores, are selected from a positively skewed distribution with µ = 50 and σ = 60, then for the distribution of sample means the expected value of M is ______ and the standard error is _____?

Answer 1

Solution :

Given that ,

mean = = 50

standard deviation = =60

n = 36

sample distribution of sample mean is ,

=

= 50

sampling distribution of standard deviation

=  / n = 60 / 36

= 10

sample means the expected value of M is __50____ and the standard error is ___10__?