Using the HT and statin use example in Sect. 4.6.1, show that if we first centered the statins indicator, β 1 in XXXXXXXXXXwould be interpretable as the average causal effect of HT. Contrast this with...

Using the HT and statin use example in Sect. 4.6.1, show that if we first centered the statins indicator, β₁
in (4.10) would be interpretable as the average causal effect of HT. Contrast this with the interpretation of β₁
if statins is used in its original form as a 0–1 indicator for statin use.