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Assume we have a population of scores with mean (mu) of 200 and standard deviation (sigma) of 10. Assume that the distribution is normal. Provide answers to the following questions:
1. What score would cut off the top 5 percent of scores?2. What score would cut off the bottom 5 percent of scores?3. What score would cut off the top 2.5 percent of scores?4. What score would cut off the bottom 2.5 percent of scores?
Determine payback period for implementing Oracle Discoverer? Assume that WebFocus will be in-place until December 31 and the migration to Oracle will be done concurrently and is expected to be completed and operational by Dec 31 as well.
Test at 5% significance level null hypothesis that population mean is 40 hours against alternative that it is higher.
Prepare a scatter plot and Interpret the meaning of slope, b1, in this problem
A sample of twenty automobiles was taken, and the miles per gallon (MPG), horsepower, and total weight were recorded. Develop a linear regression model to predict MPG using horsepower as the only independent variable. Develop another model with weig..
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
Report a table of marginal means for each level of each of the three factors.
Can we conclude there is a difference in mean number of surgeries performed by hospital or by day of week?
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
Describe the sampling distribution of the sample mean.
A process follows the binomial distribution with n = 8 and p = .3. Find
One person's file is chosen at random. Find out probability that selected person will fall into following categories. Book keeping.
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