Question 15 (15 points) A sample of 20 items from manufacturer A were measured and a sample mean of 2376.3 and a sample
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Question 15 (15 points) A sample of 20 items from manufacturer A were measured and a sample mean of 2376.3 and a sample
Question 15 (15 points) A sample of 20 items from manufacturer A were measured and a sample mean of 2376.3 and a sample standard deviation of 24.1 were obtained. Also, a sample of 24 items from manufacturer B were measured and a sample mean of 2402.0 and a sample standard deviation of 26.4 were obtained. Use a two-sided hypothesis test with a=0.02 to evaluate whether there is sufficient evidence to conclude that there is a difference between the strengths of the two canvas types.
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