We have taken 12 samples of 400 book pages found the following proportions of defective pages: .01, .02, .02, .00,.01, .03, .02, .01,.00, .04, .03, and .02. A page is con- sidered defective when one or more errors are detected. a. Calculate the control limits for a p control chart.
b. A new sample of 400 pages is taken, and 6 pages are defective. Is the process still in control?

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.