Question: 1. Consider a day when the Dow Jones Industrial Average went up 149.82 points. The following information shows the stock price changes for a sample

1. Consider a day when the Dow Jones Industrial Average went up 149.82 points. The following information shows the stock price changes for a sample of 12 companies on that day. (4 points) x=.78 and s2=.8585 (a). Provide 95% confidence interval estimates of the population variance. (b). Provide 95% confidence interval estimates of the population standard deviation

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