San Diego State University Operations And Supply Chain Management Assignment Help - Level

Question - A UCLA researcher claims that the average life span of mice can be extended by as much as 8
months when the calories in their food are reduced by approximately 40% from the time they are
weaned. The restricted diets are enriched to normal levels by vitamins and protein. Suppose that a
random sample of 10 mice are fed a normal diet and live an average life span of 32.1 months with a
standard deviation of 3.2 months, while a random sample of 15 mice are fed the restricted diet and
live an average life span of 37.6 months with a standard deviation of 2.8 months. Test the hypothesis
at the 0.05 level of significance that the average life span of mice on this restricted diet is increased
by 8 months against the alternative that the increa ...Read More se is less than 8 months. Assume the distributions
of life spans for the regular and restricted diets are approximately normal with equal variances. ...Read Less

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