stock market analyst wants to estimate the average return on a certain stock. A random sample of 17 days yields an average (annualized) return of x?=11.4% and a standard deviation of s = 3.2%. Assuming a normal population of returns, construct a 90% confidence interval for the average return on this stock?
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645), \(s\) is the standard deviation (3.2%), and \(n\) is the sample size (17). ** Show more…
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