Calculating Mean and Standard Deviation of Heights

A researcher is studying the heights of a specific population of adult females. The heights (in inches) of a random sample of 20 individuals are recorded as follows:

• 62, 65, 61, 68, 64, 67, 68, 63, 65, 66, 70, 68, 69, 64, 62, 65, 67, 66, 68, 70

First, determine the mean height of this population. Then, calculate the standard deviation of the heights.

Round your answers to two decimal places and report them as a single number in the grid-in box, with the mean first followed by the standard deviation, separated by a comma (e.g., x,y).