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A horse race has 13 entries one person owns 3 of those horses. Assuming no ties, what is the probability that those horses finish first, second and third
A randomly selected employee earns
natural gas spot and future pricesthe law of one price implies that the spot price and the future price of a commodity
Calculate the difference for each subject, then calculate the mean and standard deviation of these differences.
The warranty period must be long enough to make the purchase attractive to the buyer. For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months. Where should the warranty limits be set ..
Discuss the data that the graph is used to visually represent. Speculate on why the editor chose the graph, as opposed to merely reporting the data.
A clinical psychologist is studying the efficacy of a new drug medication for depression.
Consider the following situation: Data Set A: Average = $157 Standard Dev. = $84 Data Set B: Average = 34 oz. Standard Dev. = 21 oz
What does it mean for a sample to have a standard deviation of 0? Describe the scores in such a sample.
A random sample of 89 observations produced a mean x (x bar) = 25.8 and a standard deviation s= 2.4. - find a 95, 90, and 99% confidence interval for u. In a sample of 304,000 items mailed between Dec. 10 and Mar. 3, the accounting firm determined th..
An analysis of the final test scores in this class shows that the scores follow the normal distribution. The mean of the distribution is 75, and the standard deviation is 8. The professor wants to award an A to a student whose score is in the highest..
State the statistical assumptions of this test and using the data set and variables you have selected, use SPSS to calculate the Mean and Median.
The Environmental Protection Agency (EPA) warns communities when their tap water is contaminated with too much lead. Drinking water is considered unsafe if the mean concentration of lead is 15.5 parts per billion or greater.
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