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1. Listed below are intervals (in minutes) between eruptions of the Old Faithful geyser in Yellowstone National Park. After each eruption, the National Park Service probides an estimate of the length of time to the next eruption. From the sample data below, find the mean and standard deviation for the time between eruptions.
98, 92, 95, 87, 96, 90, 65, 92, 95, 93, 98, 94
2. Stanford Binet IQ scores have a mean of 100 and a standard deviation of 15. Albert Einstein reportedly had an IQ of 160. Convert Einstein's IQ score to a z score.
Find out the probbility that exactly five arrive within two days?
Elucidate the null and alternative hypothesis for the difference among the two means. In testing the difference between the means of two.
Calculate probability that the sample would have a mean:
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
Conduct an analysis of variance
The weight of a product is normally distributed with a standard deviation of .5 ounces. What should the average weight be if the production manager wants no more than 5 percent of the products to weight more than 5.10 ounces.
Assume then money spent is uniformly distributed between these amounts. Determine the mean amount spent on insurance?
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
Calculate a 95% confidence interval for the population mean, based on the sample 10, 12, 13, 14, 15, 16, and 49.
Find out the operating characteristics for this system.
What is the probability that a particular driver had exactly two speeding violations?
Develop the management-research question hierarchy that will help you to develop a specific proposal.
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