Posted by **John** on Sunday, February 12, 2012 at 8:10pm.

. A professor is interested in knowing the correlation, if any, of studentsâ€™ scores on the first and second exams given in his class.

Test 1 Test 2

92 86

90 87

89 85

82 90

88 79

92 90

100 92

91 84

Is there a significant correlation? Explain its statistical significance, if any.

With respect to the situation in the above question , what other test could the professor use that would yield valid results by looking for differences. What would be the statistical result of the test?

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