- For A Population The Value Of The Standard Deviation Is 2 51 A Random Sample Of 35 Observations Taken From This Popula 1 (164.69 KiB) Viewed 38 times
A random sample of 11 observations taken from a normally distributed population produced the following data: −7.110.38.9−3.6−5.6−7.65.33.59.9−4.56.3 Round your answers to 2 decimal places. a. What is the point estimate of μ ? b. Make a 95% confidence interval for μ. to c. What is the mangin of error of estimate for μ in part b?
A company randomly selected nine office employees and secretly monitored their computers for one month. The times (in hours) spent by these employees using their computers for non-job-related activities (playing games, personal communications, etc.) during this month are given below. Assuming that such times for all employees are normally distributed, make a 95% confidence interval for the corresponding population mean for all employees of this company. Round your answers to two decimal places.