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You want to estimate the average weight of bull riders in the US. So you have drawn a random sample of 100 from the population of 1000 bull riders.

You want to estimate the average weight of bull riders in the US. So you have drawn a random sample of 100 from the population of 1000 bull riders. You found from the sample of 100 that average weight is 68 kg and standard deviation ( SD ) to be 17 kg. What is the 90% confidence interval?

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For a 90% confidence interval, z=1.645 The parameters... View the full answer

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