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Question: In a study of weight loss, two educational methods were tested to see if they resulted in the same weight loss among the subjects. One method was called the standard method since it involved lectures on both eating and exercise. In addition to lectures, the experimental method included daily reporting of dietary intake by e-mail followed by return comments the same day. After a 1-month period, subjects were rated as to whether they met their goals for weight loss.
(a) Test whether the same proportion of the two treatment groups met their goals for weight reduction.
(b) Compute the relative risk of meeting their goals for the experimental and the control groups.
(c) Compute the odds ratio of meeting their goals for the two groups and give 95% confidence intervals.
Calculate correlation coefficient for these sample data.
an entomologist writes an article in a scientific journal which claims that fewer than 20 in ten thousand male
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An independent-measures t test produced a t statistic with df=20. If the same data had been evaluated with an analysis of variance, what would be the df values for the F-ratio?
A California lawyer practices law, on the average, for 30 years. Assuming these members remain steady, how many lawyers would you expect California to have in 2050.
imagine that there are 100 different researchers each studying the sleeping habits of college freshmen. each researcher
Company are interested in how a new spaghetti sauce made from green tomatoes (and green in color) will compare to their traditional red spaghetti sauce. They are worried that the green color will adversely affect the tastiness scores.
A wireless pressure sensor (buried in the ground) reports a discrete random variable X with range SX = {0, 1,..., 20} to signal the presence of an object. Given an observation X and a threshold x0, we conclude that an object is present (hypothesis..
This problem relater to Basic Statistics and it discuss about measuring faith development of students after joining a faith based institution
Find out the cheapest way of manufacturing today's batch of NasaMist.
the number of kernels of corn in a bag of microwave popcorn is 1262 with a standard deviation of 118 kernels.
The Safety Council estimates that off-the-job accidents cost businesses almost $500 billion annually in lost productivity. Based on their estimates, companies with hundred employees are expected to have six off-the-job accidents per year. a) What ..
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