White BCCs and Systolic BP White blood cell counts (BCCs) and systolic blood pressure

(BP) amounts are measured for 50 randomly selected adult males (from Data Set 1 “Body Data”). The 50 pairs of measurements yield x = 125.4 mm Hg, y = 6.75 (1000 cells>mL), r = 0.055, P-value = 0.702, and yn = 5.66 + 0.009x. Find the best predicted value of yn

(white blood cell count) for an adult male with systolic blood pressure of 150 mm Hg.