What is the difference between 76.82 and 2.761? 49.210 74.679 74.059 79.581
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The confidence interval is based on mean square error. T<span>he </span>mean squared error<span> (</span>MSE<span>) </span><span>of an </span>estimator<span> measures the </span>average<span> of the squares of the </span>errors<span> or </span>deviations.<span> MSE is calculated by the formula attached in the picture, where Xbar is a vector of predictions, X is the vector of predicted values. </span>
For substitution this is what answer I got but I don’t know if that’s what your looking for
