A Cholesterol Test Was Given to 10 Heart Patients with High

question 86

Multiple Choice

A cholesterol test was given to 10 heart patients with high cholesterol levels.The same 10 heart patients are then given a new cholesterol-reducing drug for six months.Before the patients begin taking the drug,they are told to maintain their current diets and eating habits so that the effect of the drug can be more effectively determined.After taking the drug for six months,the same patients are given a cholesterol test again.The pharmaceutical company manufacturing the medicine wants to know if the drug is effective in reducing the cholesterol levels of the patients.The cholesterol levels before and after taking the drug is recorded for each patient.The distribution of cholesterol levels is not normally distributed.Which one of the following nonparametric tests is appropriate for this problem?

• A)Wilcoxon signed rank test
• B)Wilcoxon rank sum test
• C)Sign test
• D)Kruskall-Wallis test
• E)Spearman's rank correlation test

Develop skills to plot time series and moving averages for visual trend analysis.

Understand the concept of statistical control and its importance in process monitoring.

Apply control charts to monitor process stability and quality.

Determine control limits and interpret control charts to identify process variations.

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Definitions:

Hearing Aid

A device designed to improve hearing by making sound audible to a person with hearing loss.

Pulmonary Embolism

A blockage in one of the pulmonary arteries in the lungs, usually caused by blood clots that travel to the lungs from the legs or other parts of the body.

Bariatric Surgery

Surgical procedures performed on the stomach or intestines to induce weight loss, usually recommended for cases of severe obesity.

Cholecystectomy

A surgical procedure to remove the gallbladder, often due to the presence of gallstones or other gallbladder diseases.