Question

What is the mean of the scores on the standardized test?

A. 85
B. 85.5
C. 86
D. 86.5

Answer 1

The mean of the scores on the standardized test is 68.00.

Step-by-step explanation:

The mean of the scores on the standardized test can be calculated using the given information. In this case, we are given the 95 percent confidence interval for the true population mean, which is between 67.02 and 68.98.

Since the mean is the midpoint of the confidence interval, we can add the two values and divide by 2 to find the mean.

So, the mean is (67.02 + 68.98) / 2 = 68.00.