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The following sample observations were randomly selected.
X: 4 5 3 6 10Y: 4 6 5 7 7
a. Determine the standard error of estimate.b. Suppose a large sample is selected (instead of just five). About 68 percent of the predictions would be between what two values?
Find the probability that in a given winter month at least 140 cars will be rented. Use the normal distribution to approximate the binomial distribution.
What is the approximate probability that the mean diameter of the sample of 36 bearings will lie within 0.0001 inch of the population mean diameter of the bearings?
Develop a p chart with 3-sigma control limits and evaluate whether the process is in statistical control
Find the equation of least -squares line and plot the line on the scatter diagram of part (a)
Assume the population standard deviations are the same. At the .10 significance level, can we conclude that the annual rates of return are higher on the big board?
A total of 61,647 people responded to an Elle/ MSNBC.com survey. It was reported that 50% of the respondents were women and 50% men.
Jill wants to do her MBA in Statistics at a B.C. university. She applies to two universities that offer post-graduate degrees in Statistics.
The results shown below are mean productivity measurements (average number of assemblies completed per hour) for a random sample of workers at each of three plants.
Compute the suitable Test Statistic to test hypothesis that the proportion of condominiums that sold within 30 days decreased from 2006 to 2007.
Compute the 95% confidence interval for the percent of homeowners who are dissatisfied with their homeowner's insurance policy.
What sample size would be needed to obtain an error of +/- 10 square millimeters with 99% confidence?
Identify the indicated values or interpret the given display. In a survey of 703 randomly selected workers,
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