Question

For a science project, two students need to estimate the average height of the 273 students in the senior class at their school. Each student measures the heights of 20 randomly selected members of the senior class. The mean height for one sample is 166 cm, and the mean height for the other sample is 170 cm. Which is the better estimate of the mean height of the students in the senior class?

166 cm


170 cm


Neither result is a good estimate.


Both results are equally good estimates.

Answer 1

Explanation:

Neither is a good estimate

20 is too little of a sample, in my opinion, anyway.

30-50 might be better.