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For the leading health maintenance organization (HMO) firms, data file XR15014 lists the number of persons enrolled in the HMO along with the number of plans the firm administers. Given these data, determine the least-squares equation for predicting the total enrollment as a function of the number of plans administered. (SOURCE: The Wall Street Journal Almanac 1999, p. 565.)

a. The estimated intercept is 510653

b. The estimated slope is 125388.5

c. The estimated total enrollment for an HMA firm that administered 20 plans is __________ persons.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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