A random sample of 20 fifth grade students had an average sc

A random sample of 20 fifth grade students had an average score of 253.2 on a standard math test. Their math teacher is interested to see if their average score is significantly higher than the national average. Which of the following tests would you recommend?

One-sample test for proportions

Two-sample test for proportions

One-sample test for means

Two-sample test for means

Solution

Since we are comparing the actual scores here, then this is a test for means.

As we only have one group of samples being compared to the population here, then it has to be

OPTION C: One-sample test for means. [ANSWER]