calories in school lunches: 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. (national bureau of economic research, november 2002.) the economist claimed that after the testing period end, the average caloric content of virginia school lunches dropped significantly.. Set up the null and alternative hypothesis to test the economist's claim

A applied math hypothesis test may be a technique of applied math abstract thought accustomed decide whether or not the info at hand sufficiently support a selected hypothesis. Hypothesis testing permits us to create probabilistic statements regarding population parameters.

Main body:

Let ц =average calories of virginia school lunches

The average calories in the school lunch is 863

Here the economists claims that after the testing period ends, the average caloric content in the lunches were dropped

The null hypothesis is H₀ц = 863

Means H₀ ;The average caloric content in the school lunch is 863

The alternative hypothesis is H₁ц <863

Hence , H₁; the average caloric content in the lunches was dropped.

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