Question

The data shown below are the times in minutes that successive customers had to wait for...

The data shown below are the times in minutes that successive customers had to wait for service at an oil change facility. Using hand calculation and formula, 1) find sample mean and standard deviation, 2), construct a histogram, and 3) use MINITAB to validate your findings and the histogram.  

9.93          

10.13

9.98

9.92

9.98

9.92

9.78

10.07

9.84

10.01

9.97

9.97

9.92

10.09

10.09

9.96

10.08

10.01

9.84

10.08

9.91

10.15

9.94

9.98

10.00

9.9

9.93

9.88

9.92

10.02

10.09

9.99

10.05

10.01

10.03

10.07

9.91

10.06

9.86

10.03

10.01

10.05

10.21

9.95

10.02

10.1

9.88

10.13

9.83

9.97

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