In order to estimate with 95% confidence a particular value of $y$ for a given value of $x$ in a simple linear regression problem, a random sample of 20 observations is taken. The appropriate table value that would be used is 2.101.

Question

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The appropriate table value is the t-value for a 95% confidence interval with 18 degrees of freedom (n-2=20-2=18), which is approximately 2.101.

In Order to Estimate with 95% Confidence a Particular Value yyy

In Order to Estimate with 95% Confidence a Particular Value $y$