Find mean of the store-s monthly advertising expenditure


The monthly advertising expenditure for a hardware store is normally distributed with a standard deviation of $100. If a sample of 10 randomly selected months yields a mean advertising expenditure of $380 monthly, what is a 90% confidence interval for the mean of the store's monthly advertising expenditure?

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Basic Statistics: Find mean of the store-s monthly advertising expenditure
Reference No:- TGS0105741

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