Dottie Kleman is the "Cookie Lady." She bakes and sells cookies at 50 different locations. Ms. Kleman is concerned about absenteeism among her workers. The information below reports the number of days absent for a sample of 10 workers during the last two-week pay period. 4 12 2 1 2 2 1 03 a) Determine the mean and the standard deviation of the sample. b) What is the population mean? What is the best estimate of that value? c) Develop a 95 percent confidence interval for the population mean. d) Explain why the t distribution is used as a part of the confidence interval. e) Is it reasonable to conclude that the typical worker does not miss any days during a pay period