I will attach my question.

Exercise 7.17 An economist reports a set of parameter estimates, including the coefcient estimates 31 : 1.0, 32 : 0.8, and standard errors 3(31] : 0.07 and 5(32) : 0.07. The author writes "The estimates Show that .81 is larger than 132." [a] Write down the formula for an asymptotic 95% condence interval for 6' : '81 g. expressed as a function of 31, fig, 5(31}, 5(32] and ,6, where f)\" is the estimated correlation between 31 and 32. [h] Can ,6 be calculated from the reported information? (c) Is the author correct? Does the reported information support the author's claim