Question: The Test of Knowledge about Epilepsy KAE which is designed
The Test of Knowledge about Epilepsy (KAE), which is designed to measure attitudes toward persons with epilepsy, uses 20 multiple-choice items, all of which are incorrect. For each person, two scores (ranging from 0 to 20) are obtained: an attitude score (KAE-A) and a general-knowledge score (KAE-GK). On the basis of a large-scale study of college students, the distribution of KAE-A scores has a mean of μ = 11.92 and a standard deviation of σ = 2.95 while the distribution of KAE-GK scores has a mean of μ = 6.35 and a standard deviation of σ = 2.12 (Rehabilitative Psychology, Spring 1995). Consider a random sample of 100 college students, and suppose you observe a sample mean KAE score of 6.5. Is this result more likely to be the mean of the attitude scores (KAE-A) or the general-knowledge scores (KAE-GK)? Explain.
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