= 5. σM = = 1.118. Z.95 can be found using the normal distribution calculator and assign the shaded area to be 0.95 and indicate that you want this area to be between the cutoff points.

What does it mean to calculate the 95 confidence interval Mcq?

You can be 95% sure that you have chosen a sample whose interval does not include the population mean.If you take all possible samples and calculate the confidence interval, the 95% interval will include The true population means somewhere within their interval.