Question: I need the Calculations, not definitions. Hope someone can help me to find the covariance of two variables, how to calculate t-statistics. Thanks. Use the

I need the Calculations, not definitions. Hope someone can help me to find the covariance of two variables, how to calculate t-statistics. Thanks.

Use the below output to test the null hypothesis Ho : Bx - 0.5Bw = -0.5 against the two tailed alternative H : Bx - 0.5Bw + -0.5 at a 1% significance level. Be sure to explain how you have been able to make use of the output given. (10 MARKS] Note the variable Wplushalf X = W +0.5X Call: lm (formula = Y X + Z + WplushalfX) Residuals: Min 1Q Median 3Q Max -1.8984 -0.4832 0.2532 0.5756 2.0092 Coefficients: Estimate Std. Error t value Pr(>[t]) (Intercept) 4.67189 1.66765 2.801 0.0099 ** X -0.63364 0.39078 -1.621 0.1180 Z -2.51074 0.04934 -50.885

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