QNT 351 Week 4 First Message#2

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 QNT 351 Week 4 First Message#2


Week 4 First Message#2

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What is a confidence interval? How to Construct a Confidence Interval. How to Interpret Confidence Intervals.

Suppose you want to estimate the average weight of an adult male in County of USA.  You draw a random sample of 1,000 men from a population of 1,000,000 men and weigh them. You find that the average man in our sample weighs 180 pounds, and the standard deviation of the sample is 30 pounds. What is the 95% confidence interval.