Mathematics, 24.11.2021 18:30, ashiteru123

g Many buildings are constructed with an estimated useful life of 50 years. You look through records of 9 random buildings and find a mean number of useful years of 47 with a standard deviation of 6. What is the UPPER BOUND of the 99% confidence interval (two-sided) for the mean number of useful years of these buildings

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g Many buildings are constructed with an estimated useful life of 50 years. You look through records...