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Suppose X, the number of flaws in a roll of polyethylene insulated cable, follows a Poisson process where \lambda is 1.1 flaws per 4-meter length of cable.
a) What is the probability a roll of cable 16 meters in length has less than three flaws?
b) What is the probability a roll of cable 32 meters in length has exactly 5 flaws?
c) What is the expected number of flaws in a roll of cable 32 meters in length?
d) What is the standard deviation of the number of flaws in a roll of cable 32 meters in length?
probability based on a random experiment.your stock drawer has 18 folded pairs of stocks with 8 pairs of white 6 pairs
In the sample of 400 households, 112 were watching the series. At the 5% significance level, would the series be judged successful on basis of this sample information?
At the 5% significance level, can the researcher reject the hypothesis that the mean reading scores of all children in the three school systems is the same ? Formulate and test the appropriate hypotheses. Use the critical value approach.
Using the high-low method, calculate the total fixed factory overhead cost and the variable factory overhead cost per direct labor hour.
Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. What is the probability that Person A was given a vitamin tablet?
A researcher plans to compare two treatment conditions by measuring one sample in treatment 1 and a second sample in treatment 2. The researcher will then compare the scores for the two treatments. If there is a difference between the two groups o..
for a particular instant lottery the bettor can determine immediately whether a purchased ticket is a winning ticket.
1 suppose xberp and yber q with 0ltplt1 0ltqlt1 and let x y be independent. determine the pmf for xy.2 suppose we have
Normal with a standard deviation of 0.3 inch. How does the diameter of an orange at the 67th percentile compare with the mean diameter?
a competency test has scores with a mean of 69 and a standard deviation of 4. a histogram of the data shows that the
The diameters of oranges in the certain orchard are normally distributed with the mean of 5.26 inches and a standard deviation of 0.50 inches.
A researcher is interested in the relationship between caffeine consumption and activity level for elementary school children. A sample of 20 children is obtained and the children are separated into two roughly equivalent groups.
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