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The average time to print a job app in the computer is 20 seconds.
a) Calculate the upper bound on the probability of printing a job app in less than 22 seconds.
b) If the variance is found to be 1 second how does this affect the upper bound calculated in part a.
The standard deviation of test scores on a certain achievement test is 10.5. A random sample of 150 scores on this test had a mean of 72.8.
give a 95 confidence interval for the mean blood phosphorus level for 5.4 5.2 2.5 4.9 5.7 and 6.3 mgdl. also what
a product is made up of two subsystems in series. the first subsystem consists of 15 components in series. the second
If an employee is selected at random, what is the probablity that the employee is female or works as a member of admin?
imagine you are a manager at a major bottling company. customers have begun to complain that the bottles of the brand
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
an electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with
6 are won by peace and 4 are won by queen and 2 end in a draw. they agree to play a tournament consisting of 3 games. Find the probability that: 2 games end in a row.
in six test runs a truck operated 8 10 15 7 9 and 11miles with one gallon of gasoline. at the 95 level of confidence is
which of the following are determinants of a sample size for a clinical research trial?a. alpha type 1 errorb. the
In determining automobile mileage ratings, it was found that the mpg in the city (x) for a certain model is normally distributed, with a mean of 24 mpg and a standard deviation of 1.0 mpg. Find the following:
Find the z-score for a car driving 20 mph in this construction zone. It is an outlier (assume the data is bell shaped, so dont actually test it with pearsons index).
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