A random sample of n= 100 observations is selected from a population with μ = 30 and σ = 16.
a. Find and .
b. Describe the shape of the sampling distribution of .
c. Find P(x≥ 28).
d. Find P(22.1 ≤ x≤ 26.8).
e. Find P(x≤ 28.2).
f. Find P(x≥ 27.0).
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