"a study is performed in san antonio to determine whether the average weekly grocery bill per five-person family in the town is significantly different from the national average, which is $131. a random sample of 50 five-person families in san antonio showed a mean of $133.474 and a standard deviation of $11.193." assume that the national average weekly grocery bill for a five-person family is $131. is the sample evidence statistically significant? if so, at what significance levels can you reject the null hypothesis?
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Category: womensstudies |
Author: Mona Eva
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