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An analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in eighth graders. The number of older siblings in the sample observations ranges from 0 to 4. Discuss whether this variable should be placed in the model as an ordinary quantitative variable or by means of four 0, 1 indicator variables.
Consider a Poisson distribution with a mean of two occurrences per time period.
Computing the mean value for the given data - What is the new mean for the class and frequency distribution graph, what type of graph should be used
Develop a 99 percent confidence interval for the population proportion.
SOB's systolic blood pressure is a random variable with a mean of 145 mmHG and a standard deviation of 20mmHG. If the SOB's blood pressure is taken at a randomly chosen moment
Find the linear regression model for the South Central states. How does the equation for the South Central states compare to the one you found for the North Central states?
The kinds of statistical methods that were used to formulate the author's argument.
How would the General Counsel's decision in Part (b) change if the cost of selling the second suit were only $200,000? What if the cost were $900000?
Testing for population mean - How would this information be useful to you if you were the college register?
Write an expression for the probability that during a given 1-min period, all of the operators receive exactly the same number of requests.
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval using the plus four method for the difference in the proportion of defectives.
What proportion of sample means would be between 1.31 and 1.33 inches?
First, write down three social problems (e.g., drug abuse, gang membership, bullying, domestic violence, child abuse, etc) that we might attempt to predict using logistical regression.
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