Term
| Confidence intervals for a mean response |
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Definition
| Intervals constructed about the predicted value of y, at a given level of x, that are used to measure the accuracy of the mean response of all the individuals in the population |
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Term
| Prediction intervals for an individual response |
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Definition
| Intervals constructed about the predicted value of y that are used to measure the accuracy of a single individual's predicted value |
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Term
| Lower bound CI, mean response of y, ybar = |
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Definition
yhat - t(alpha/2) [se((1/n) + (x* - xbar)^2/summation(xi - xbar)^2
where x* = given value of the explanatory variable |
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Term
| Upper bound CI, mean response of y, ybar = |
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Definition
yhat + t(alpha/2) [se((1/n) + (x* - xbar)^2/summation(xi - xbar)^2
where x* = given value of the explanatory variable |
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Term
| Lower bound, prediction interval for an individual response about ybar = |
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Definition
ybar + t(alpha/2) [se(1 + (1/n) + (x* - xbar)^2/summation(xi - xbar)^2
where x* = given value of the explanatory variable |
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Term
| Upper bound, prediction interval for an individual response about ybar = |
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Definition
ybar + t(alpha/2) [se(1 + (1/n) + (x* - xbar)^2/summation(xi - xbar)^2
where x* = given value of the explanatory variable |
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