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3 A university wants to compare out of state applicants mean SAT math scores 1...

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Basic Math

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3 A university wants to compare out of state applicants mean SAT math scores 1 to in state applicants mean SAT math scores 2 The university looks at 35 in state applicants and 35 out of state applicants The mean SAT math score for in state applicants was 540 with a standard deviation of 20 The mean SAT math score for out of state applicants was 555 with a standard deviation of 25 It is reasonable to assume the corresponding population standard deviations are equal Calculate a 95 confidence interval for the difference 1 12 1 56 Multiple Choice O 33 6105 3 6105 25 7961 4 2039 25 8124 4 1876 25 6067 4 3933

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