Using the TI-83/84 Plus Chapter 8: Hypothesis Testing ...

Example: Carl the farmer has started using organic fertilizer this year. The average weight of his tomatoes last year was 10.3 ounces. A sample of 40 tomatoes from this years crop reveals a mean weight of 9.8 ounces with a standard deviation of 1.7 ounces. Assume the weights are normally distributed. Use a 0.05 signi cance

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