Ten Couples Are Participating in a Small Study on Cholesterol

question 48

Multiple Choice

Ten couples are participating in a small study on cholesterol.Neither the man nor the woman in each couple is known to have any problems with high cholesterol.The researcher conducting the study wishes to use the sign test for matched pairs to determine if there is evidence that the cholesterol level for the husband tends to be higher than the cholesterol level for the wife.The cholesterol measurements for the 10 couples are given below. What is the (approximate) value of the P-value?

• A)0.039
• B)0.055
• C)0.079
• D)0.172

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Definitions:

Sample Proportion

The ratio of members in a sample meeting a certain criterion to the total number of members in the sample, serving as an estimate of the population proportion.

Normal Distribution

A bell-shaped probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Sample Size

Sample size refers to the number of observations or data points collected in a study.

Sampling Distribution

The arrangement of probabilities for a specified statistic, coming from a randomly chosen sample.