A research report claims that mice with an average life span of 32 months will live to be about 39 months old when 40% of the calories in their diet are replaced by vitamins and protein. Is there any reason to believe that u <39 if 63 mice that are placed on this diet have an average life of 38 months with a standard deviation of 6.8 months? Use a P-value in your conclusion. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. Identify the null and alternative hypotheses.

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