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MATH 1342 Lab 9 F11

# MATH 1342 Lab 9 F11 - MATH1342 Collin County College...

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MATH1342 LAB (Project) 9 for Ch. 11 NAME: ________________ Collin County College Summer 2011 Instructor: Daryl Rupp DUE DATE: 11/22/2011 Part I. Is there a difference in Statistics grades between First period classes and Second Period classes? To find out, we are going to compare the average overall grades for the two samples from the First period and Second period classes. The First period classes had a sample mean of 87.9 and sample standard deviation of 7.6 for a sample of 26. The Second period classes showed a sample mean of 88.1 and a sample standard deviation of 10.8 for a sample of 26. Test the claim that First period classes have a different average grade than Second period classes, to a significance level of 0.20 1. Claim: 2. Alternate hypothesis: 3. Null hypothesis: 4. Is this a right, left or two sided test? 5. Critical Value(s): 6. Test Statistic & P-value: Write the keystrokes for finding the test statistic and p-value: 7. What is the test Statistic: 8. P-value: 9. Compare the P-value to the Significance Level:

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MATH 1342 Lab 9 F11 - MATH1342 Collin County College...

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