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Find the lower bound of the 90 confidence interval for the

A random sample of 13 DVD movies had a mean length of 115.2 minutes, with a standard deviation of 66.2 minutes. Find the lower bound of the 90% confidence interval for the true mean length of all Hollywood movies. Assume movie lengths to be approximately normally distributed. Round to one decimal place.

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HR Management: Find the lower bound of the 90 confidence interval for the

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