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Question: Ponderosa Paint and Glass makes paint at three plants. It then ships the unmarked paint cans to a central warehouse. Plant A supplies 50% of the paint, and past records indicate that the paint is incorrectly mixed 10% of the time. Plant B contributes 30%, with paint mixed incorrectly 5% of the time. Plant C supplies 20%, with paint mixed incorrectly 20% of the time. If Ponderosa guarantees its product and spent $10,000 replacing improperly mixed paint last year, how should the cost be distributed among the three plants?
Using the 0.01 level of significance, is there evidence that the mean shopping time at the supermarket is different from the claimed value of 22 minutes?
What's the probability that no one will arrive in the next 10 minutes?- What's the probability that 2 or more people arrive in the next 10 minutes?
describe the differences between correlations and regressions. can you describe situations where you would use one of
Assume that the standard deviation of monthly rents paid by students in a particular town is $40. A random sample of 100 students was taken to estimate the mean monthly rent paid by the whole student population. What is the probability that the sam..
a random sample of the lifetime of 49 ultraillum light bulbs has a mean of 3960 hours and a standard deviation of 200
One reads that a business school graduate with an undergraduate degree earns more than a high school graduate with no additional education, and a person with a master's degree or a doctorate earns even more.
Test for a different intercept for families with a male or a female as head of the household and test for a different slope or MPC (marginal propensity to consume) for families with a male or a female as head of the household.
When you are setting up a hypothesis test based on some claim, why is it absolutely necessary that the level of significance, alpha, be set early and upfront before any calculations are made? What are the serious mistakes that are made
Assume the arrival of these emails is approximated by the Poisson distribution.
The following data are annualized returns on a group of 15 stocks- Find the median, the first and third quartiles, and the 55th and 85th percentiles for these data.
A SRS of size 16 drawn from a Normally Distributed population has a mean of 30 and a standard deviation, s, of 5. With 95% confidence, what is the interval that captures the true mean of the population?
For each of the sample means listed, use the standard error of10.23 to find a 95% confidence interval and state whether or not the interval captures the true population mean of 53.48 million dollars. (1) mean=40 (2) mean=70 (3) mean=84
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