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Question: Predicting physical activity. Participation in physical activities typically declines between high school and young adulthood. This suggests that postsecondary institutions may be an ideal setting to address physical activity. A study looked at the association between physical activity and several behavioral and perceptual characteristics among midwestern college students. Of 663 students who met the vigorous-activity guidelines for the previous week, 169 reported eating fruit two or more times per day. Of the 471 that did not meet the vigorous-activity guidelines in the previous week, 68 reported eating fruit two or more times per day. Model the log odds of vigorous activity using an indicator variable for eating fruit two or more times per day as the explanatory variable. Summarize your findings.
Four different assembly processes were under consideration. Sixteen workers were randomly assigned to the four processes, eight per process. The number of correctly assembled units in an eight-hour work shift was recorded:
Psychologists wanted to test whether a certain accelerated class' IQ was different than average. There were 25 students in the class; their mean IQ score was 108.
q1. what is probability of observing 61325 when rolling fair dice?probabilities for fair dice p1p2p3p4p5p616q2. what is
In studying the performance of the company's stock investments over the past year, the research manager of a mutual fund company finds that only 43% of the stocks returned more than the rate that had been expected at the beginning of the year.
in a 2010 survey 58 of generation y geny adults were found to pay their monthly bills on time. suppose a member of geny
Provide an explanation of a chi-square test. Why would you use the chi-square statistic? What type of data is used with chi square analysis?
a company that sells an online course aimed at helping high-school students improve their sat scores has claimed that
A motor transport company has 50 similar buses. The management suspects that its control of these vehicles is inadequate. What suggestions could you make for investigating vehicle use, and tightening managerial control over the company?
Prepare an analysis of your selected article. Start by identifying and summarizing the hypothesis described in the article. Then explain whether the hypothesis was rejected or accepted,
Thus, a critical quality characteristic is selected for monitoring from each product. What type of control chart would be suitable in this context? What assumptions are necessary?
The topic chosen must relate to a topic discussed in the assigned reading material, but also take a holistic view in that you should integrate knowledge of the concepts that you learned throughout the course. Research relevant to the aviation and ..
What is the probability that there will be at least 4 failures in the coming year?- there will be between 2 and 8 failures, inclusive, in the coming year?
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