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1. The dollar amounts for loans made to earthquake victims are normally distributed with a mean of $6,000 and a population standard deviation of $1,200.
2. If thirteen of these loans are randomly selected, what is the probability that the sample variance will be less than 528,000?
3. Suppose that we randomly sample 60 of these loans. What is the probability at least 53 of these will have a dollar amount of $7,333 or less?
How many different tests are there for applying the chi-square distribution? What are these tests?
The Web-based company Oh Baby! Gifts has a goal of processing 95 percent of its orders on the same day they are received. If 485 out of the next 500 orders are processed on the same day
a large university is interested in the outcome of a course standardization process. they have learned that 150
The fundamental equation says that the change in entropy of the liquid, dS = dE/T, is negative. Is this in violation of the second law of thermodynamics?
What is the probability that a poll of a simple random sample of 100 NC voters will result in at least half of those polled favoring the other candidate? Use the normal approximation (no continuity correction) and give your answer to four decimal ..
Categorize the following as the example of nominal, ordinal, interval, or ratio level of measurement, and define why it represents this level: marital status of company's employees.
Suppose that the proportion of nonconforming product is 3% and we want to detect an out-of-control condition with a probability of 0.95. Find the acceptance control chart limits.
how large of a sample size do we need to estimate the mean annual income of native americans in onondaga county new
A 95% confidence interval for the mean weight gain of adult mice on a certain diet is (11.2, 54.7) grams.
When only the value-added time is considered, the time it takes to build a laser printer is thought to be uniformly distributed between 8 and 15 hours.
A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one.
Mean income with an error of $500 can be constructed. If the population standard deviation is known to be $8,000 what sample size would the economist need to use?
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