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X: 5 3 6 3 4 4 6 8Y: 13 15 7 12 13 11 9 5
What is the standard error of estimate and suppose a large sample is selected and about 95 percent of the predictions would be between what two values.
a. How many of the individuals selected in your sample are female? b. How is the stratified sample different from the SRS?
What is the hospital's cost of capital assuming that the hospital has the following capital structure on its Statement of Financial Position.
Assuming the population is large, which sample size will give the smallest standard deviation to the statistic and select the numbers for the first five to be interviewed.
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
In other words, could you generate two sets of random numbers (of length, say, 50) and set out the calculations in detail to determine whether the random variables are independent using chi-squared.
A recent study of 75 workers found that 53 people rode the bus to work each day. Find the 95 percent confidence interval of the proportion of all workers who rode the bus to work.
Determine and report the within-group slope which relates Y to Xc (for this, you will have to look at your regression printout).
The number who will go to the Ohio State University is a binomial random variable. What is the mean number of seniors going to the Ohio State University?
Briefly explain how the standard deviation influences outcome of hypothesis test. How does σ influence measures of effect size?
Using the original data, estimate the population standard deviation with 90% probability.
Does lovastatin (a cholesterol-lowing drug) reduce the risk of heart attack? In a Texas study, researchers gave lovastatin to 2,325 people and an inactive substitute to 2,081 people (average age 58). After 5 years, 57 of the lovastatin group had s..
Create by hand decision tree for this problem and then examine decision tree to recognize optimal policy. Use TreePlan to create and solve decision tree.
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