Given are five observations collected in a regression study on two variables. xi 2 6 9 13 20 yi 7 18 9 26 23 Develop the estimated regression equation for these data. ŷ = (c) Use the estimated regression equation to predict the value of y when x = 20.
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Step 1
Step 1: Calculate the estimated regression equation using the formula y = a + bx, where a = (sum of y * sum of x^2 - sum of x * sum of xy) / (n * sum of x^2 - (sum of x)^2) and b = (n * sum of xy - sum of x * sum of y) / (n * sum of x^2 - (sum of x)^2). Show more…
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