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Qusetion: 1. How are tests of independence similar to tests for homogeneity?
2. An archer's standard deviation for his hits is six (data is measured in distance from the center of the target). An observer claims the standard deviation is less.
a. What type of test should be used?
b. State the null and alternative hypothesis
samuel cartwright is suing over a workmanship defect in a data backup system that cost him 3 years of client data. he
Give an understanding with the difference between a population, a sample, and a sampling distribution. Uus a Java applet and external web sites for comment/reference.
If you know that the number of possible values a random variable can have is finite, do you know whether the random variable is discrete or continuous?
The probability that Alice will fail her probability exam is .15. The probability that Box will fail his exam is.09. The probability that both fail is .05. What is the probability that both will pass?
In an online survey of 4001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the internet for its practical value. Suppose you select a sample of 400 students at your school, and the population ..
a large firm has 85 of its service calls made by a contractor and 10 of these calls result in customer complaints. the
Suppose that the actual mean value in the population is , what is the probability of a Type II error (incorrectly accepting a false null hypothesis)?
State the null hypothesis and the alternative hypothesis that we would use for this test.
Is there sufficient evidence at a = 0.05 to conclude that the students did better the second time? Discuss possible reasons for your results.
You have $380,000 in your bank account. The interest rate in your account is 5%. Solve for the following showing your work: How much interest will you accumulate if interest is compounded annually over the next five years?
an experiment was designed to estimate the mean difference in weight gain for pigs fed ration a as compared with those
The Hammaker Company's newest product has had the following sales during its first five months: 5 17 29 41 39. The sales manager now wants a forecast of sales in the next month. (Use hand calculations rather than an Excel template)
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