Question regarding the confidence interval
If we have a 95% confidence interval, we have alpha/2 below the confidence interval and alpha/2 above the confidence interval. What is alpha/2 for a 95% confidence interval?
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The drive sprocket has 19 teeth and the sprocket on the mixer has 84 teeth. Determine the speed of the drive sprocket, the chain speed, and the recommended lubrication method.
A company manufactures two products, Product A and Product B. The wholesale price and manufacturing cost of each product are shown below.
Descent, Inc., produces a variety of climbing and mountaineering equipment. One of its products is a traditional three-strand climbing rope. An important characteristic of any climbing rope is its tensile strength.
The pressure at the nozzle exit at 0.5mpa. Calculate the heat transfer per unit mass during the expansion if the exit temperature is 50 degrees Celsius.
The diameter of the ball is 2.001 cm and the inner diameter of the ring is 2.000 cm. At what temperature does the ball just fit through the ring?
Suppose as part of a national study of economic competitiveness a marketing research firm randomly sampled 200 adults between the ages of 27 and 35 living in metropolitan Seattle and 180 adults between the ages of 27 and 35 living in metropolitan
Can you conclude at the 0.025 level of significance that a higher proportion of the university's college students are concerned about Internet theft than the public at large? What is the p-value for the test in (a)?
If wood beams are available with cross secstions having h=2b, what is the minimum value of b (to the nearest even mm) that satisfies the shear stress citerion?
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