A brand manager is concerned that her brand’s market share may be evenly distributed

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An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 15 metal sheets are given below. Use the simple linear regression model.

∑X =30

∑X2=100

∑Y = 45

∑Y2 =165

∑XY =120

Find the slope and intercept and write the estimated Regression equation. Find SSE, SST, and SSR. Also find the Coefficient of Determination and interpret it. Find the correlation coefficient.