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A manufacturer of industrial solvent guarantees its customers that each drum of solvent they ship out contains at least 100 lbs of solvent. Suppose the amount of solvent in each drum is normally distributed with a mean of 102.3 pounds and a standard deviation of 3.82 pounds.
What would the standard deviation need to be so that the probability a drum meets the guarantee is 0.92? Give your answer to three decimal places.
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
question 1 a neighbourhood medical centre initiates a study to evaluate the wait time. the records of 18 randomly
Determine the probability of receiving at most three calls in a five-minute interval of time. Determine the probability of receiving exactly 10 calls in 15 minutes.
the probability that a randomly selected pregnancy lasts less than 149 days is approximately .3821. so the probability
Sample data recently collected indicate that Dough Boy's crusts average 30 centimeter in diameter, with a standard deviation of 1.1 centimeters.
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 98% confidence that the sample mean is within 2 minutes of the population mean.
1. a researcher examines the records of all registered voters in one city and finds that 43 are registered democrats.
On the basis of these results, do you think retailers and consumers have a right to complain to the manufacturers? Why?
judgmental forecasting and managerial issuesgive a scenario preferably related to your area of expertise or work
the friendly neighbor grocery store has a single checkout stand with a full-time cashier. customers arrive randomly at
Which variable is the independent variable and which is the dependent variable? Write out the regression equation and sketch it on the plot. What percentage of the variability in the defect rate can be explained by differences in volume?
in the design of an electromechanical product 12 components are to be stacked into a cylindrical casing in a manner
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