3 Statistics Questions - 3 Statistics Questions Question 1:...

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3 Statistics Questions Question 1: I) Description of problem and statement of claim. I will be testing whether tutoring of a sample of students effects the overall test scores. In this case, we’ll make the sample scores over the population mean, but not enough to completely convince of significance. A researcher begins with a known population- in this case, scores on a standardized test that are normally distributed with u= 65 and standard deviation of 15. The research suspects that tutoring will produce a change in the scores for the individuals in the population. Because it is not feasible to administer the treatment (the tutoring in this case) to everyone, a sample is done of 25 students. The sample is tutored and M= 70. Is there sufficient evidence that tutoring has an effect on test scores? II) Statement of null hypothesis. Our null hypothesis will simply state that tutoring has no effect. Ho : u = 65
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This note was uploaded on 12/21/2011 for the course ECON 101 taught by Professor Higgins during the Spring '11 term at University of Nevada, Las Vegas.

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3 Statistics Questions - 3 Statistics Questions Question 1:...

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