Question

Tamoxifen is a drug often used to treat breast cancer patients. One effect of the drug is to change the levels of cortisol-binding globulin (CBG). One study attempted to see if the effect of Tamoxifen is age dependent on the patients age. The response variable Y is the change in CBG and the covariate X is age. The following summary statistics were reported. n-26, Σχί-1613. Σ yi-281.9, Sr,-3756.96. Sy,-465.34, Sr,--757.64 (a) Find the least squares estimates of the intercept and slope (b) Give the standard errors for your estimates in (a). (Using result in Question 2.) (c) Construct 95% confidence intervals for the true intercept and true slope. d) What conclusions would you draw from your results? Dry

Answer 1

3ㄱ56.96 l6/3 R 6 a81.9 er esliade 0 573 S, est