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minitab project 6

minitab project 6 - If the correlation = 0 it doesn’t...

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BUAD 310 Minitab Project 6 1. a.) The correlation is bigger than -1 but still negative. I get a correlation of -0.934 b.) E (Y) = E (2-3x + E) = E (2) + E (-3x) + E (e) = 2 – 3 E(x) + E (e) = 2-3(0) + 0 = 2 c.) The correlation between X and Y would be stronger, making the points closer to the line d.) The correlation would be -1 e.) The correlation would be close to 0 If x & y are independent then the correlation = 0
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Unformatted text preview: If the correlation = 0 it doesn’t mean x & y are independent If correlation = 0 and x & y are independent then x and y must be from a normal distribution 2. a.) 10 – 2 (2-3x+e) = 6 + 6x – 2e Correlation = close to -1 b.) correlation = 1 3.) a.) The correlation between e & Z should be close to 0 b.) The new correlation will be close to 1 c.) Make the largest number even larger than 15...
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