River Bottom Fire Department is evaluating their response times in order to determine whether a new fire station is needed. Samples were taken for 30 random days from 6 stations. These data can be found in the worksheet Prob07-01 in the Ch07Data.xlsx file.a. Using Microsoft Excel® or similar software with statistical capability, construct a histogram for these 180 individual readings.b. Construct a run chart for the sample meansc. Interpret what the data show. Does the process appear to be in control?

 

River Bottom Fire Department
Sorted
Values
3.81			Bin	Frequency
3.82			3.8	0
3.85			4.0	35
3.86			4.2	65
3.87			4.4	13
3.88			4.6	11
3.88			4.8	15
3.88			5.0	36
3.88			5.2	4
3.89			5.4	1
3.90			More	0
3.90
3.90
3.91
3.91
3.93
3.93
3.93
3.94
3.94
3.94
3.95
3.95
3.95
3.95
3.96
3.98
3.98
3.98
3.98
4.00
4.00
4.00
4.00
4.00
4.01
4.01
4.01
4.01
4.01
4.01
4.01
4.02
4.02
4.03
4.03
4.04
4.04
4.05
4.06
4.06
4.06
4.06
4.06
4.07
4.07
4.08
4.08
4.08
4.08
4.08
4.08
4.09
4.1
4.1
4.1
4.1
4.11
4.12
4.12
4.12
4.12
4.12
4.13
4.13
4.14
4.14
4.14
4.14
4.14
4.15
4.15
4.16
4.16
4.16
4.16
4.16
4.16
4.17
4.17
4.17
4.17
4.18
4.18
4.18
4.19
4.19
4.19
4.19
4.19
4.21
4.21
4.22
4.23
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