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i. Trying to predict weekly sales with a standard error of estimate of $1,955, we would conclude that 68 percent of the predictions would not be off more than $1,955, 95 percent would not be off by more $3,910, and 99.7 percent would not be off by more than $5,865.
Ii) Approximately 95% of the values lie within two standard errors of the regression line
Iii) The smaller the sample, the smaller the possible error as measured by the standard error of estimate.
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