1.If you have a double acceptance sampling plan where c1=1, r1=4, and r2=6, what is the probability you will accept the lot if the percent nonconforming in the population is 0.5%? Write out the equation for the combined probability of acceptance before you solve for anything.
2.Draw a control chart with the following out of control behaviors:
a. A trend and cycling behavior
b. A jump and two populations
c. Two populations and cycling behavior
d. A jump, a trend, and an obvious mistake
3.Your company has decided to use a p-chart to monitor the quality of their chicken nuggets. Data from the previous 15 batches is listed below.
a. Calculate the central line, warning limits, and action limits for the chart.
b .How would you convert this data into a u-chart?
c. How would this chart be used to determine where to use an Xbar and R chart pair?
Batch #
# nuggets inspected
# nonconforming
10171
125
3
10172
125
5
10173
125
2
10174
125
2
10175
125
7
10176
125
4
10177
125
3
10178
125
4
10179
125
5
10180
125
2
10181
125
1
10182
125
4
10183
125
4
10184
125
3
10185
125
6