The following are the ages (years) and systolic blood pressures of 20 apparently healthy adults: Age (X)

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The following are the ages (years) and systolic blood pressures of 20 apparently healthy adults:

Age (X) BP (Y) Age (X) BP (Y)

20 120 46 128 43 128 53 136 63 141 70 146 26 126 20 124 53 134 63 143 31 128 43 130 58 136 26 124 46 132 19 121 58 140 31 126 70 144 23 123 Find the simple linear regression equation and test H0 : b1 ¼ 0 using both ANOVA and the t test.
Test H0 : r ¼ 0 and construct a 95 percent confidence interval for r. Find the 95 percent prediction interval for the systolic blood pressure of a person who is 25 years old. Let a ¼ :05 for all tests.

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