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A production process produces 90% non-defective parts. A sample of 10 parts from the production process is selected.
a. What is the probability that the sample will contain 7 non-defective parts?b. What is the probability that the sample will contain at least 4 defective parts?
Standard deviation is 35 hours. Is the company making acceptable light bulbs? Assume life spans are normally distributed.
the heights of 18-year-old men are approximately normally distributed with mean 68 inches and standard deviation 3
A woman has n keys, of which one will open her door. (a) if she tries the keys at random, discarding those that do not work, what is the probability that she will open the door one her kth try?
you are given the accompanying response data on concentration of a chemical as a function of time. the six sets of
An electrical firm manufactures electric light bulbs that have a length of life which is normally distributed with mean and standard deviation equal to 500 and 50 hours, respectively.
question five thousand randomly-selected mba graduates were surveyed to determine their future plans. the survey
The following sample data shows the quarterly earnings in millions for two US companies. Your research interest is finding if the average earnings for these companies are different.
Manufacturer of mole and gopher poison has experienced the following monthly demand for an environmentally sound pesticide poison. Using a Average method, what would the forecast have been for July?
Using your simulation results calculate an estimate of the probability that the sum of the dice is 10 and the player is dealt three cards that can be put in sequence.
The heights of 10 sixth graders are listed in inches: {54, 62, 54, 57, 60, 61, 53, 63, 59, 56}. Find the mean, median, mode, sample variance, and range.
Compute and explain a 90% confidence interval for the population proportion of executives who believe the U.S. legal system hampers the ability to compete.
Developing the histogram and pie chart for the sample data.
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