A)A groups of 10 chemical patients have a mean(M) weight of 240 pounds,the sample standard deviation (Sm) is 25 pounds.Find the confidence interval at 95%. B) A group of 10 surgery patients had a M=240lb.The sample standard deviation was 25lb.Find a confidence interval for a sample for the true mean weight of all foot surgery patients.Find a 95% confidence interval.

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