The least-squares regression line relating two variables x and y is given by . Compute theresidual if the actual (observed) value of y is 3 when x is 4.

The least-squares regression equation for the data is dive time = 78.338 0.322(max depth). Predict the dive time, if the maximum depth is 60 feet. Express your answer to the nearest minute (whole number).

The predicted dive time for the diver is approximately 56 minutes for a maximum depth of 70 feet. The actual dive time was 55 minutes. Compute the residual.

The least-squares regression equation for the scuba diver data is dive time = 78.338 0.322(max depth). Predict the dive time, if the diver remains on the surface of the water (maximum depth is 0 feet). Express your answer to the nearest minute (whole number).

If the scuba diver increases the maximum depth on a dive by 1 foot, then what happens to the dive time?

It would decrease by 0.322 minutes.

It would increase by 0.322 minutes.

It would increase by 78.338 minutes.

It would decrease by 78.338 minutes.