The arithmetic mean is most useful for Calculuting the average of a comparny's sales growith over time. Calculating the average of a compary's employee salaries. Calculating the average growth rate of the consumer price index. Calculating the average of a stock's returns over time. Question 3 1 pts Use Excel for this question: Assume that the average return of a series of returns is 0.19 and the tandard deviation is 0.325. Calculate the range in which the returns fall with a 95% chance. Lower limit: 0.135, upper limit: 0.515 Lower limit: 0.785, upper limit: 0.965 Lower limit: 0.46, upper limit: 0.84 ower limit: 0.125, upper limit: 0.86