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Mathematics, 08.11.2019 01:31 cg20061107

It is believed that the average amount of money spent per u. s. household per week on food is about $98, with standard deviation $10. a random sample of 100 households in a certain affluent community yields a mean weekly food budget of $100. we want to test the hypothesis that the mean weekly food budget for all households in this community is higher than the national average. are the results significant at the 5% level?

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