Sample standard deviation
A normally distributed process has specifications of LSL = 50 and USL = 60 on the output. A random sample of 25 parts indicates that sample mean = 56 and sample standard deviation = 2. Obtain the estimate of Cpm
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A 1543-kg submarine rises straight up toward the surface. Seawater exerts both an upward buoyant force of 14,687 N on the submarine and a downward resistive force of 1007 N. What is the submarine's acceleration?
The number of phone calls passing through a switchboard has a Poisson distrubution with a mean equal to 3t, where t is the time in minutes. Find the probability of the following:
Calculate the power and mix time for a pitch blade turbine agitator with diameter DA=0.33 m running at N=16 rpm in a tank system without baffles but otherwise conforming to the standard tank configuration.
Assume that on the average 1 person out of 25 whold make plane reservations fails to show. An airline takes 100 independent reservations and has 96 seats. What is the probability that every passenger will have a seat?
Graphical displays are used to provide the viewer information that illustrates qualitative or quantitative information about the data set under review.
Lithium would be the least expected to undergo a reaction with chlorine gas. Write a balanced chemical equation for the reaction.Express your answer identify all the phases.
Determine the reading on the pressure gage in psig when all the liquid has just turned to vapor (all saturated vapor). Show this process on a sketch of a T-v diagram.
Find the mean and varience of X. Use the general formulas for mean and variance and check results using the formulas u = np and o2 = npq.
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