Question: Given that the standard regression assumptions hold, if an approximate 95% prediction interval calculated for a new observation (within the observed range of the data)

Given that the standard regression assumptions hold, if an approximate 95% prediction interval calculated for a new observation (within the observed range of the data) was (14.5, 15.5), then what was the approximate RMSE for the model?

a. 0.25.

b. 1.0.

c. 2.0.

d. 4..0

e. None of the above

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