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Question
Exhibit6-2
In order to evaluate a graduate program in counseling, a decision is made to compare the scores of the recent graduates on the National Counseling Exam (NCC) to the national norms. Therefore, the program decides to compare its current graduates with the all graduates nationally who took the exam. Their scores of the current graduates are as follows:
Using the information in Exhibit 6-2, if you want to end up with six bars on your histogram, how many numbers should be in each interval?
Answer
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Exhibit6-2In order to evaluate a graduate program in counseling, a decision is made to compare the scores of the recent graduates on the National Counseling Exam (NCC) to the national norms. Therefore, the program decides to compare its current graduates with the all graduates nationally who took the exam. Their scores of the current graduates are as follows:Refer to Exhibit 6-2. Find the standard deviation.
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