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A certain office building infrequently experiences power outages. It is known that the probability of a power outage on any given day is 0.005, and power outages are independent of each other.
a) What is the probability that during any given 400 day period there will be one day with a power outage?
b) What is the probability that power outages will occur on more than three days during the 400 day period?
The Complaints Department of a popular used car dealer receives most complaints about the electrical system, particularly the starter.
What percent of the time will a fully charged battery last at least 330 minutes. What is the probability that a random sample of n = 15 batteries results in a mean talk time of at least 330 minutes?
1. what are the assumptions of the simple linear model?2. name three assumptions of the anova
How much should they charge for a 2 year extended warranty so that they will still make money selling the extended warranties in the long run and keep the cost of the warranties as low as possible to make them more marketable?
a firm has k250000 to spend on labour and raw materials. the output of the firm is axy where a is a constant and x and
A human resources director, on learning about the regression effect, decides to hire people who have been fired by their previous employer for poor performance.
A sample of 15 workers revealed the following number of minutes traveled. Develop a 98 percent confidence interval for the population mean. Interpret the result. Please explain how you calculate.
Dan Thompson, the president of CEO Airlines, recently noted an increase in the number of no-shows for flights out of Atlanta.
What are the advantages and disadvantages of each? Explain how the empirical rule help explain the ways in which the values in a set of numerical data cluster and distribute?
Dr. Easy saw the scores from the MA-222 test and used the occasion to test the old adage that girls are smarter than boys on subjects tested by ACT.
If a random sample of 10 people found that 9 were pro-life (i.e., 90%), while another random sample of 1000 people from the same population found that 550 were pro-life (i.e., 55%), which would you find more significant? Why?
assuming that the data are normally distributed with a mean of 25 and a standard deviation of 1.25 what is the z-score
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