Active Learning Statistics with R

Suppose that we are studying the amount of time customers wait in line at three branches A,  B and C of a bank.  A sample of 5 randomly selected customers at each branches as shown below.

A: 5, 5, 5, 5, 5

B: 5, 4, 6, 7, 3

C: 1, 5, 9, 2, 8

Based on these samples, which branch would you like to do your banking? Explain why you choose the option.

sd() is the code to find the sample standard deviation in R.  Use the R cell below to find the standard deviation of the data set x. Then find the sample standard deviation of the wait time at the branch B.

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