A market research analyst believes that the average weekly household expenditure on groceries in quant city is a random sample

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1.A market research analyst believes that the average weekly household expenditure on groceries in Quant City is $125. A random sample ...

nt City is $125. A random sample of 25 Quant City households yielded a mean of $133 and a standard deviation of $22. Assume that weekly household expenditures on groceries in Quant City are normally distributed. What is the conclusion of testing the analyst’s belief at the .05 level of significance?

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