A sample of 40 companies listed on the stock exchange has an average amount of total...

A sample of 40 companies listed on the stock exchange has an average amount of total assets equal to 431,000,000, with a standard deviation of 120,000,000. At level of confidence α=0.05, test the hypothesis that the average for all companies listed on the exchange is 600,000,000 or more.

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orchestra answered 11 months ago

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