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Using the data in table 2 of Schneider et al, estimate the probability that a respondent with the following characteristics will be a PTA member:
(i) active chooser, (ii) lives in district 1, (iii) dissatisfied, (iv) child attends a school which has 300 students, (v) black, (vi) lived in district 1 for 11 years before survey, (vii) completed 12 years of schooling, (viii) employed, (ix) female, (x) atheist-never goes to church-never!!
Binomial distribution for large values of the number of trials, n. Suppose that Y has a binomial distribution with n trials and probability of success on any one trial denoted by p. How we can obtain P (Y B)?
How many seizures per week would you predict for a person who has been at the hospital for ten weeks - There is a perfect positive relationship between the number of weeks spent in a hospital and the number of seizures recorded.
When calculating correlation coefficient, what does a value of -2 indicate? Strong negative correlation, Weak negative correlation.
The sample mean X will be used to estimate. Determine the probability that the estimate will be off by less than .2 oz. Assume that the SD of the fills is .8 oz.
Write up your results by using scientifically recognized form.
suppose a population has mean micro 100 and the population standard deviation s 25. also suppose a random sample of
All welders in a factory begin as apprentices. Every year the performance of each apprentice is reviewed. Past records indicate that after each review, 10% of the apprentices are promoted to professional welder
the blood pressure measurements of a single patient were taken by twelve different medical students and the results are
Computer science instructor, 3 statistics instructors, and 4 science instructors. If an instructor is selected, find the probability of getting a science instructor or math instructor.
Explain how the margin of error is reported in the article, and how and why the margin of error impacts the results of the study.
Possible test scores could range from 0 to 500. Assume that the scores are normally distributed. Find the probability that a student had a score higher than 320.
What is the predicted blood pressure for an average 17 year old as estimated from the regression line? And the standard error of the estimate for a 17year old ?
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