Mathematics, 07.12.2019 01:31 tiffuuu
For a population with µ = 80 and σ = 20, the distribution of sample means based on n = 16 will have an expected value of and a standard error of select one: a. 5; 80 b. 80; 5 c. 20; 20 d. 80; 1.25 2) samples of size n = 9 are selected from a population with µ = 80 with σ = 18. what is the standard error for the distribution of sample means? select one: a. 80 b. 18 c. 6 d. 2 3) for a normal population with a mean of µ = 80 and a standard deviation of σ = 10, what is the probability of obtaining a sample mean greater than m = 75 for a sample of n = 25 scores?
select one:
a. p = 0.0062
b. p = 0.9938
c. p = 0.3085
d. p = 0.6915
Answers: 2
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For a population with µ = 80 and σ = 20, the distribution of sample means based on n = 16 will have...
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