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Question 428:

Each student in an experiment was told to look at 100 cars and count the number of people wearing the seat belts. The mean score for the class was found to be 44, and standard deviation =7. Now, a student reported finding 62 seat belt users out of 100. Do you think the student just made up a number rather than actually counting?

If you need help with the concepts covered in this question (like z-scores and the normal-curve) you can download a visual and easy to understand Crash Course in Z-scores and an Excel Calculator which will do everything you need to do with z-scores.

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