Question
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude, and study habits of college students. Scores range
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude, and study habits of college students. Scores range from 0 to 200 and follow (approximately) a Normal distribution with mean 115 and standard deviation 25. You suspect that incoming freshmen at your school have a mean,which is different from 115 because they are often excited yet anxious about entering college. To test your suspicion, you decide to test the hypothesesH0:= 115 versusHa: 115. You give the SSHA to 25 incoming freshmen and find their mean score to be 116.2.
What is the value of the test statistic?
A. z= 0.048
B. z= 0.24
C. z= 1.2
D. z= 1.96
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Essentials of Business Analytics
Authors: Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
2nd edition
1305627733, 978-1305861817, 1305861817, 978-0357688960, 978-1305627734
