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In a shipment of 12 room air conditioners, there are 3 with defective thermostats. Three air conditioners will be selected at random and inspected one after another. Find the probability that:
(a) All three are good(b) The first 2 are good and the third defective(c) Two are good and one defective
Internet users age 12-17 in proportion who opposes ads? Solve manually and then by mega stat. Point to your decision rule, your hypotheses and statistical and management conclusions."
1. ross whites machine shop uses 2500 brackets during the course of the year and this usage is relatively constant
Find the minimum sample size needed , using a prior study that found that 26% of the respondants said they planned to travel outside the US in next 12months.
The following is based on the normal distribution of scores with mean equal to 90 and standard deviation equal to 3.5. Determine the probability of a score falling between a raw score of 84 and 96?
Suppose that population has normal distribution. Determine a 95 percent confidence interval for population standard deviation sigma.
What is the prediction for Home Price if Square Feet = 2,000? (c) Would the intercept be meaningful if this regression applies to home sales in a certain subdivision?
Explain how the power of hypothesis test is influenced by each of the following. Assume that all other factors are held constant. Increasing the alpha level from .01 to .05.
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
A stationery store wants to estimate the total retail value of the 300 greeting cards that it has in its inventory. What are the upper and lower limits of the 95% confidence interval estimate of the population total value of all greeting cards tha..
Some national statistics indicate the self-reported number of minutes per week of exercise is μ = 96.8 among college students. At the University of Wisconsin
Which of the following is a major difference between the binomial and the hypergeometric distributions?
Find the probability among 6 randomly selected graduates, that at most 2 of them find a job in his or her chosen field within a year.
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