Q2 33 Consider The Cholesterol Level Question Given In Hw2 Doctors In A Health Center Collect Cholesterol Data On A 1 (187.54 KiB) Viewed 44 times
Q2. (33) Consider the cholesterol level question given in HW2. Doctors in a health center collect cholesterol data on a random sample of 20 men who have had heart attacks. The standard deviation of cholesterol in men is known to be 10 from the historical experiences. The sample mean was calculated as 255. Can doctor say that mean cholesterol level in men is less than 260 at 1% significance level? Answer all the questions: What is the specific value for the mean cholesterol level in men? What are the null and alternative hypothesis? What is the name of the test? What is n? What is o? What is S? What is † ? What is alpha? What are the critical value(s)? What is the test statistic? What is the conclusion of the test?
Q4. (15) Doctors in a health center collect cholesterol data on a random sample of 20 men who have had heart attacks. The standard deviation of cholesterol in men is known to be 10 from the historical experiences. If the sample mean is 260, calculate 95% confidence interval for the cholesterol level in men.
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