The null and alternative hypotheses are:
- H0:μ=0mg/dL
- H1:μ>0mg/dL
The test statistic is Ztest=2.8125.
The p-value is 0.0025.
Thus, we conclude that there is sufficient evidence to support the claim that the mean change in LDL cholesterol is greater than 0mg/dL.
H0:μ=0mg/dL,H1:μ>0mg/dL,Ztest=2.8125,P=0.0025