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8) The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the...

8) The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school and the study habits of students. The mean(average) score for traditional aged college students is 115. A education researcher is interested in testing whether older students have a mean SSHA score that is higher than the average score for traditional aged college students.

a) What would be the null and alternative hypothesis for testing whether the average SSHA score for older students is higher than the average score for traditional aged students?

b) A random sample of 40 older students showed an average SSHA score of 126.2 with a standard deviation of 30. Calculate the P-Value for this data based on your hypothesis in part a

c) Based on the data collected calculate a 95% confidence interval for the true mean(average) SSHA score for older students.

Math   Statistics-And-Probability   
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