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A random sample of the number of games played by individual NBA scoring leaders is shown below. Is there sufficient evidence to conclude that the variance in games played differs from 40 at α = .05? Assume, of course, that the variable is normally distributed. (Hint: is this a one- or two-tailed test?) Use the P-value method. 72 79 80 74 82 79 82 78 60 75
Replace (or exchange) 10% of its model I and 18% of its model II. If a model is selected at random, find the probability that it will be defective.
Four have a 4/10,000 chance for failure. One component has a 1/100 chance for failure. What is the overall reliability of the product?
What is the difference between common cause variation and special cause variation?
suppose a penny arcade worker is in charge of keeping ten machines in operation. the failure rate of each machine
Why do a null and alternative hypothesis have to be mutually exclusive? When would you accept the null hypothesis? Can you give an example of this?
Martin Motors has in stock three cars of the same make and model. The president would like to evaluate the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gaso..
Interpret the Regression equation results including the intercept, slope and the Coefficient of Determination. Test to determine if there is a significant negative relationship between the independent and dependent variable
Using the five steps of hypothesis testing and the 5% significance level (alpha), does showing the film change students' attitudes towards the chronically mentally ill?
In fiscal 1996, the U.S. Agency for International Development provided 238,300 metric tons of corn soy blend (CSB) for development programs and emergency relief in countries throughout the world.
on a psychology exam with m 76 and s 12 tom scored 9 points below the mean mary had a score of x 70 and bill had a
Distinguish between the types of audits that might be used for each process. Recommend the audit most appropriate for each process.
Find the 90% confidence interval for the standard deviation for the time it takes an inspector to check a bus for safety if a sample of 27 buses has a standard deviation of 6.8 minutes.
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