Name ____________________________________________
Homework: Control Charts
Date _____ Class _____
Mr. Lynch
Complete each of the following:
1) The average number of customers served at Burger Heaven is 76 with a standard deviation of 4. The
following data shows the number of customers served at Burger Heaven over a 15 day period:
# of
Customers
Day
72
75
78
78
78
74
74
75
62
63
66
78
58
81
92
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
a) Construct a control chart to display the data.
b) Does the chart indicate that the data is “in control”? Why or why not?
2) Local birds fly over a sanctuary on average 29 times per day with a standard deviation of 3.2. The
following data shows the number of birds passing over the sanctuary over the last 12 days:
# of
birds
Day
29
31
31
32
33
35
29
28
26
24
29
32
M
T
W
TH
F
S
SU
M
T
W
TH
F
a) Construct a control chart to display the data.
b) Does the chart indicate that the data is “in control”? Why or why not?