A family doctor wishes to further examine the variables that affect his female patients' total cholesterol. He randomly selects 14 of his female patients and asks them to determine their average daily consumption of saturated fat. He then measures their total cholesterol and obtains the data in Table 4.

Approach Enter the data into Minitab and create the correlation matrix. The steps for creating a correlation matrix using Minitab, Excel, and StatCrunch are given in the Technology Step-by-Step

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Table 4 Age, .x1 Saturated Fat (g), x2 Total Cholesterol, y 25 19 180 25 28 195 28 19 186 32 16 180 32 24 210 32 20 197 38 31 239 42 20 183 48 26 204 51 24 221 51 32 243 58 21 208 62 21 228 65 30 269