The difference of the sample means of two populations is 34.6, and the standard deviation of the difference of the sample means is 11.9.
The 95% confidence interval lies between
and

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

True or false? a circle could be circumscribed about the quadrilateral below.

Measure of angles 31 (x+4) (3x+9) me