The important thing in estimating the proportion of blue M&Ms that the manufacturer produces is
A) the randomness of the sample.
B) the size of the sample
C) the variability from bag to bag.
D) all of the above

Question

Quizplus · Accepted Answer

All three factors are important in estimating the proportion of blue M&Ms that the manufacturer produces. The randomness of the sample ensures that the results are representative of the entire population of M&Ms produced. The size of the sample increases the accuracy of the estimate and reduces the margin of error. The variability from bag to bag accounts for the fact that the proportion of blue M&Ms may vary slightly within the population, and thus a larger sample size is needed to account for this variability.

The Important Thing in Estimating the Proportion of Blue M&Ms