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t test

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A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high numbers indicate greater ability)(t test chart)are given in the following table. Using the .05 level, do the results support the researcher’s theory? (a) Use the steps of hypothesis testing, (b) sketch the distributions involved.

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    Sophisticated statistics questions involving t tests, chi-squared tests and null hypotheses etc. are usually not answered here because we are shorthanded in that area.

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