Dave's Automatic Door installs automatic garage door openers. Based on a sample, following are the times, in minutes, required to install 10 door openers: 28, 32, 24, 46, 44, 40, 54, 38, 32, and 42. Click here for the Excel Data File a. Compute the sample variance. (Round your answer to 3 decimal places.) Sample variance b. Determine the sample standard deviation. (Round your answer to 3 decimal places.) Sample standard deviation

Q: Question 12

A: Given: Value of the trading card = $155 (in 2009) Each year increases by = 4.8% = 0.048 To…

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Q: question 32

A: (32)   (a)   State the hypotheses. That is, the average activating temperature is at least 135 F.…

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A: 7) (a) The given parametric equations are  x=t+2 and y=t2-1 and t∈-3, 3. Sketch the graph of the…

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Q: In the diagram, what is the area of the shaded region? а. 9т — 36 b. 12т 36 с. 9т 18 d. 127 - 18

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Q: Question 12

A: We are given the following shapes. For (a), We need to find the volume of the box as a function of…

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A: Given a right angled triangle in which adjacent side is 72 units and hypotenuses is 93 units.

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A: Hey there! Thank you for posting the question.  Since there are multiple questions posted, we will…