Consumption of fast food is a topic of interest to researchers in the field of nutrition. The article “Effects of Fast- Food Consumption on Energy Intake and Diet Quality Among Children” ( Pediatrics [ 2004]: 112– 118) reported that 1,720 of those in a random sample of 6,212 American children indicated that they ate fast food on a typical day.
a. Use the given information to estimate the proportion of American children who eat fast food on a typical day.
b. Verify that the conditions needed in order for the margin of error formula to be appropriate are met.
c. Compute the margin of error. d. Interpret the margin of error in the context of this problem. |

New search. (Also 1294 free access solutions) |