Studies on a machine that molds plastic water pipe indicate that when it is injecting 1-inch diameter pipe, the process standard deviation is 0.05 inches. the one-inch pipe has a specification of 1-inch plus or minus 0.10 inch. what is the process capability index (cpk) if the long-run process mean is 1 inch? a. 0.50
b. 0.67
c. 1.00
d. 2.00

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x