I am interested in determining if a new drug is effective at reducing cholesterol in adults. 100 randomly selected adults had the cholesterol measured prior to the beginning of the study and again after taking the new medication for 30 days. The researchers were interested in determining if the average cholesterol levels were decreased significantly over the 30-day period. How would you recommend they analyze the results? Group of answer choices Use a paired analysis to compare the average before and after cholesterol readings. Use an independent analysis to compare the average before and after cholesterol readings. Compare the variation of the before and after cholesterol readings using a Folded F-test Compare the two population proportions using an independent sampling approach
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Step 1: Measure the cholesterol levels of 100 randomly selected adults before they start taking the new medication. Show more…
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A new cholesterol drug developed in Spencer's laboratories is being studied to determine its effectiveness. To do this, it was tested in a group of 16 adults (40 to 50 years old) and the results for the level of cholesterol in the blood before and one month after using the drug yielded means of 210 and 200 mg/dL respectively. Likewise, a standard deviation of 30 mg/dL was obtained for the difference in cholesterol levels. Considering that the differences between corresponding values are normally distributed, answer: Is the method of reducing blood cholesterol levels effective after one month of treatment? What statistic did you use to solve the problem? What is the value of the statistic?
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