Assume the sample is a random sample from a distribution that is reasonably normally distributed and...
Assume the sample is a random sample from a distribution that is
reasonably normally distributed and we are doing inference for a
sample mean. Find the area in a t-distribution below -1.0
if the sample has size n=20.
Round your answer to three decimal places.
area = ???
Homework Answers
Solution :
Given that,
sample size = n = 20
Degrees of freedom = df = n - 1 = 19
P(t < -1) = 0.1649
Probability = 0.1649
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