Refer to The Astronomical Journal study of quasars, presented in Exercise. Recall that a first-order model was used to relate a quasar€™s equivalent width (y) to its redshift (x1), line flux (x2), line luminosity (x3), and AB1450 (x4). A portion of the SPSS spreadsheet showing 95% prediction intervals for y for the first five observations in the data set is reproduced below. Interpret the interval corresponding to the fifth observation.

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2.81134845.2919.50 2307 13.73 5.1 19.65 3 34513.87 45.118.93 43.19 -1327 45.63 18.59 19.59 117101.29172.22 82 59.8225.89 33 -35.09 37.04 92 63.76 139.25 114 9069 158.57 3.07 -13.56 -13.56 45,30