4/ From the table below, which model would you choose for predicting platelet co

Question

4/ From the table below, which model would you choose for predicting platelet count?

Model C, because the p-value for gestational age is less than 0.05 and the R-squared is large.

All models are equally good at predicting platelet count.

Model B, because the adjusted R-squared is closest to 1.

Model A, because the adjusted R-squared is negative and the p-value for gestational age is close to 0.5.

Model C, because the p-value for gestational age is less than 0.05 and the R-squared is large.

All models are equally good at predicting platelet count.

Model B, because the adjusted R-squared is closest to 1.

Model A, because the adjusted R-squared is negative and the p-value for gestational age is close to 0.5.

Model Variables P-value for gestational age R Adjusted R- squaredsquared Model AGestational age 0.497 0.0027 |-0.0031 Model BGestational age, 0.004 0.1423 0.1271 birthweight Model CGestational age, 0.002 birthweight, pneumothorax 0.1450 0.1229

Explanation / Answer

the best model is that has the highest r2 value and at the same time is signficant over all.

we see that the r2 value is highest for model C , which is 0.1450 and the p value is also lowest 0.002 , which is statistically signficant , this means model C is the best choice

Hence correct choice is A

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