The 133 heights of males from a data set of body measurements vary from a low of 150.0 cm to a high of 192.5 cm. Use the range rule of thumb to estimate the standard deviation s and compare the result to the standard deviation of 13.77 cm calculated using the 133 heights. What does the result suggest about the accuracy of estimates of s found using the range rule of thumb? Assume the estimate is accurate if it is within 1.6 cm. Use the range rule of thumb to estimate the standard deviation s. s=___cm