Exhibit 19-1

question 80

Multiple Choice

Exhibit 19-1.A researcher wished to determine if there was a difference in the college aptitude examination scores of traditional and nontraditional undergraduate students.The researcher selected p = .05 as the level for rejecting the null hypothesis.The researcher obtained a mean score of 52 for nontraditional students and a mean score of 40 for the traditional students.Statistical analysis indicated that the difference in means was significant at the .05 level.
-Refer to Exhibit 19-1.How would the statistical significance be interpreted?

• A) Traditional and nontraditional students are drawn from the same population in terms of college aptitude.
• B) There are 5 chances in 100 that the two groups were drawn from different populations in terms of their college aptitude.
• C) There are 5 chances in 100 that the two groups were drawn from the same population in terms of their college aptitude.
• D) For every nontraditional student, there are 5 chances in 100 that she/he will score higher than a traditional student.

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