when we have misspecified the variance function when estimating a mode
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When we have misspecified the variance function when estimating a model by WLS,the resulting WLS standard errors, and test statistics computed using the WLSvariances and covariances, are wrong, an issue
that can be rectified by using heteroskedasticity-robust variances and covariances with WLS, as we often employ with OLS under possible heteroskedasticity. True O False