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An individual is considered to be overweight if his or her BMI is at least 25 (Kuczmarski et al., 1997). Estimate the percentage of overweight subjects in the NHANES III population using the SRS of 96 subjects from Problem 26 and, separately, using the four RSSs of 96 subjects each obtained in Problems 14-17. How do these five estimates compare with the actual percentage of overweight subjects in the NHANES III population?
If 2 circuit boards are selected at random without replacing the first, what is the probability both circuit boards are defective?
suppose that the waiting time for a customer service call is 5 minutes on average. let x denote the waiting time in
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
Perform exploratory data analysis on CreativityPre and CreativityPost. Using SPSS, calculate the mean and standard deviation of these two variables.
Henry performed a two-tailed test for an experiment in which N = 24. He could not find his table of t critical values, but he remembered the tcv at df = 13. He decided to complete his obt.with this tcv. Is he more likely to make a type I or II err..
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
An outcome measured on a five-point scale (not at all to always)... is an example of an ordinal variable. has a behavior problem when it comes to residuals.
When adding or subtracting expressions, how do you identify the like terms?
Suppose that lifetimes of such mice are normally distributed with standard deviation of 6 months, determine the probability that given mouse will live?
A retailer has data on sales in its stores yesterday. It would like a range that has a 50% chance of covering the sales of a randomly selected store today. Which does the retailer need, a prediction interval or a confidence interval?
Determine the regression equation for predicting scholarly productivity (Y) from institutional comprehensiveness (X). For an institution with a comprehensiveness score of 175, predict the psychology department's scholarly productivity score
you roll a pair of fair dice until you roll doubles i.e. both dice are the same. what is the expected number en of
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