Ask a New Question

If the standard deviation for waiting times in a line is 5 minutes, the standard deviation for the averages of 30 randomly chosen waiting times is _____ minutes.

2 answers

SEm = standard error(deviation) of the mean

SEm = SD/√n

0.9

Ask a New Question or answer this question.

Similar Questions

150 students is 60 kg the mean of body is 70 kg withstandard deviation of 10 kg and mean weight of girls is 55 kg with standard
1. 4 answers
Find the mean, variance, and standard deviation for the following data set. Round to the nearest tenth.55, 87, 62, 85, 93, 75 (1
1. 1 answer
What are the mean, variance, and standard deviation of these values? Round to the nearest hundredth.15, 18, 23, 7, 31 (1 point)
1. 1 answer
The 2012 General Social Survey asked a large number of people how many times they spent watching TV each day. The mean number of
1. 3 answers

more similar questions