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  1. mathematics
  2. statistics
  3. assume that the population of all sister-brother h

Assume that the population of all sister-brother heights has a bivariate normal distribution and that the...

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Statistics

Assume that the population of all sister-brother heights has abivariate normal distribution and that the data below were sampledfrom this distribution.

Sister height (x) 69 64 65 63 65 62 65 64 66 59 62

Brother height (y) 71 68 66 67 70 71 70 73 72 65 66

Heights of n=11 pairs of siblings

(a) Consider the population of all sister-brother heights.Estimate the proportion of all brothers who are at least 5′10′′.

(b) Suppose that Carol is 5′ 1′′. Predict her brother’sheight.

(c) Consider the population of all sister-brother heights forwhich the sister is 5′ 1′′. Estimate the proportion of thesebrothers who are at least 5′ 10′′.

Answer & Explanation Solved by verified expert
4.3 Ratings (868 Votes)
a Proportion of brothers who are are more than 70 inches ie 5 feet 10 inches 611 0545 b R Code x y summarylmyx Call lmformula y x Residuals Min 1Q Median    See Answer
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