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29 August, 20:55

A University of Florida economist conducted a study of Virginia elementary school lunch menus. During the state-mandated testing period, school lunches averaged 863 calories. The economist claims that after the testing period ends, the average caloric content of Virginia School lunches drops significantly.

Set up the null and alternative hypotheses to test the economist's claim.

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  1. 30 August, 00:37
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    Null hypothesis: u = 863

    Alternate hypothesis (H1) : u < 863

    Step-by-step explanation:

    a. Null hypothesis: u = 863

    The null hypothesis implies that the average caloric content of Virginia School lunches is equal to 863.

    b. Alternate hypothesis: u < 863

    The alternate hypothesis implies that the average caloric content of Virginia School lunches is less than 863, that is, it drops significantly.
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