Demo of consequences of tampering with a process. Copy the formula for the second adjusted y-bar value into the cells below it, and see what happens. You can also try different target values. Data from a spaghetti experiment. Presented in lecture Nov. 20 and 27.
Factors are type of plate, whether it is dry or wet, and whether the spaghetti is cold or hot.
Equal complete coverage example. This is supposed to illustrate a small universe of 50 elements. The fact that we sample from the ECC and not the actual values is the source of coverage errors, or biases, in a survey. Flying times of each discussion's entry in the competition on the last day of lecture. You can also download the data worksheets individually from here .