A Study of Obesity Risk in Children in a Head

question 34

Multiple Choice

A study of obesity risk in children in a head start program used a food score calculated from a 45-question food survey to predict body mass index (BMI) percentile in these children 18 months after the initial survey. The study enrolled 20 children. The researchers used a linear regression model for the prediction of BMI percentile with food scores ranging between 45 and 245. The least-squares estimates were slope = 0.29 and intercept = 18.3. If child A has a food score of 145 and child B has a food score of 180, then the difference in BMI percentile between child B and child A is:

• A)10.15.
• B)0.29.
• C)18.3.
• D)28.45.

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Definitions:

Annual Coupon

The yearly interest payment made by a bond to its holder.

Par Value

A legal amount per share established by a company's charter, not necessarily related to market value, often used for accounting purposes.

Zero-Coupon Bond

A debt security that does not pay interest (coupon) but is traded at a deep discount, rendering profit at maturity when the bond is redeemed for its face value.

Yield to Maturity

The total return anticipated on a bond if held until it matures, considering all payments of interest and principal and the time value of money.