A researcher finds that the average preschool-aged child drinks two cups of milk per day.Assuming these data are normally distributed,the z score for the average cups per day in this example is
A) less than 0.
B) greater than 0.
C) exactly equal to 0.
D) there is not enough information to answer this question.

Question

Quizplus · Accepted Answer

Since we do not have any information regarding the mean and standard deviation of the distribution of cups of milk consumed per day by preschool-aged children, we cannot calculate the z-score. Therefore, the z-score is exactly equal to 0.

A Researcher Finds That the Average Preschool-Aged Child Drinks Two