Blood glucose levelsfor obese patients have a mean of 98 mg/dl with a standard deviation of 14.2 mg/dl. A researcher thinks that a diet high in raw cornstarch will have a positive effect on blood glucose levels. A sample of 28 patients who have tried the raw cornstarch diet have a mean glucose level of 103.4 mg/dl.
Conduct the test that the raw cornstarch die had an effect at the
0.05 significance level. Be sure to show all steps.
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