Minimum number of bags we should sample
Suppose we want to be accurate to within 0.25 pounds of the true breaking strength of our trash bags when using a 95% confidence interval. What is the minimum number of bags we should sample?
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50mL, 20.0°C of water in the coffee-cup calorimeter. After adding 50mL at 98°C of water to the calorimeter, the temperature have changed to 58°C.
Determine the average temperature on the surface of the circuit board assuming the air flows vertically upwards along the 12-cm- long side by (a) ignoring natural convection
Suppose that in a certain population of adults who have sleep apnea (a sleep disorder), 74% are males, 26% are females, 83% are being treated for their sleep apnea, and 60% are males who are being treated for their sleep apnea
A jar of salsa sits on a wheel that is turning at 22 rpm (revolutions per minute). If the jar sits 41 cm from the center of the wheel, what is the acceleration of the jar?
If 25.0 Ml of 2.50 M CuSo4 is diluted with water to a final volume of 450 mL, what is the molarity of solute in the resulting solution?
What sample size is needed to achieve power of .80 when the mean diamter of the manufactured disc is 4.55 inches assuming the significance level remains at .01?
By how much should we adjust the mass or length of the pendulum so that the clock keeps correct time ?
Use the TTT diagram to estimate how long the alloy must be held at 600OC to complete the formation of pearlite (eutectoid microsconstituent)?
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