suppose we want to estimate the average weight of an adult male in Mexico. We draw a random sample of 2,000 men from a population of 3,000,000 men and weigh them. We find that the average person in our sample weighs 200 pounds, and the standard deviation of the sample is 30 pounds. Calculate 94%,98%,96% confidence interval
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BC is a chord length 6 of a circle center O radius 5. A is a
point on the circle closer to than C such that there is just
one chord AD which is bisected by BC. Find sin AOB
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