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for a population that has a standard deviation of 18​, figure the​ 95% confidence interval​ (that...

for a population that has a standard deviation of 18​, figure the​ 95% confidence interval​ (that is, the lower and upper confidence​ limits) for parts​ (a) through​ (d). Assume that in each case the​ researcher's sample has a mean of 102 and that the population of individuals is known to follow a normal curve.

sample sizes:

a.)2

b.)3

c.)5

d.)13

Math   Statistics-And-Probability   
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