This Question: 1 pt 2 of 19 (1 complete) Y This Quiz: 19 pts pos A gear has been

Question

This Question: 1 pt 2 of 19 (1 complete) Y This Quiz: 19 pts pos A gear has been designed to have a diameter of 3 inches. The standard deviation of the process is 0.5 inch. A control the process in control or out of control? Select all that apply chart is shown. Each chart has horizontal lines drawn at the mean, ? ? 2, and at ? 30. Determine if the process shown is in control or out of control. Explain. A. In control, because none of the three warning signals detected a change B. Out of control, because a point lies more than three standard deMations beyond the mean C.Out of control, because two out of three consecutive points lie more than two standard deviations from the mean D. Out of control, because there are nine consecutive points either above or below the mean Gears 0 1 23456781011 Observation number

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We are allowed to answer 1 questions per post, hence, answering Q13. The answer to the question with full concept is below. Please don't hesitate to give a "thumbs up" in case you're satisfied with the answer

Q2) Lets have a look at the Z tables.

Area to the right of z = -2.26 is P(z>-2.26) = .9881

Answer is .9881

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