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Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 192...


Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 192 cm and weights of 41 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x = 167.86 cm, y = 81.45 kg, r=0.378, P-value = 0.000, and y = -103 +1.13x. Find the best predicted value of y (weight) given an adult male who is 143 cm tall. Use a 0.10 significance level. 


The best predicted value of y for an adult male who is 143 cm tall is ____ kg.


Solutions

Expert Solution

The correlation is significant so we can use the regression equation to predict the value of y. Hence,

Best predicted value = -103 + 1.13*143 = 58.59 kg

milcah answered 2 years ago
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