Published on November 21, 2015
For more classes visit www.indigohelp.com 1. Follow the steps to compute the variance and standard deviation for the following population. 49 51 53 55 57 59 61 2. For a sample of 289 female heights, the mean was 65.3 inches and the standard deviation was 2.8 inches. The shortest person in this sample had of 56 inches. a. Find the z-score for the height of 56 inches. b. What does the negative sign for the z-score represent? c. Is this observation a potential outlier according to the three standard deviation distance criterion? Explain. 3. A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year.