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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.
If the restaurant stocks 400 hamburgers and 150 chicken sandwiches for a given day, what is the probability that it will run out of hamburgers or chicken sandwiches (or both) that day? Assume that the demand for hamburgers and the demand for chick..
Computing the probability values using normal distribution - what proportion of licensed drivers are less than 30 years old?
The mean was 56 and the standard deviation was 20. On the second exam, she scored 82; the mean was 74 and the standard deviation was 5. On which exam did she do better?
In a supermarket 20% shoplifters usually get caught, if a random sample of 8 shoplifters is selected. Find the mean and variance of the distribution. What is the probability that 3 will get caught?
If the packets are sold in multi-packs containing six packets, what is the distribution of the number of prizes in a randomly chosen multi-pack?
use exponential smoothing with 2 between 0.1 and 0.4 to get forecasts one period ahead for the following time series.
directions answer each of the following questions. show your work or explain how you arrived at your conclusion
How much should a healthy shetland pony weigh? Let X be the age of the ponies in months and y be the average weight of the ponies, in kilograms.
A box contains four tickets, one marked with a star and the other three blank. One draw is made from this box at random.
When trying to understand the stroke data, what would be the advantage of looking at a histogram instead of this frequency distribution?
We have been informed that the stock has gone up 20%. What is the probability of a rise or fall in the GDP?
Uising a level of significance of .10, is there evidence that the population mean weight of the hats is greater than 3.5 pounds?
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