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Dietary supplementation in Canadian athletes. Dietary supplements are often used by athletes to enhance performance, training, and recovery. There are, however, potential risks of taking supplements, especially for athletes who are subject to doping control. In Canada, a recent study was performed to evaluate the dietary supplementation practices of high-performance Canadian athletes.3 Surveys were administered to n = 440 athletes associated with the country's eight Canadian Sport Centres.
(a) Overall, 383 athletes reported having taken a dietary supplement within the previous six months. Construct a 95% confidence interval for the proportion of high-performance Canadian athletes who have taken a supplement in the previous six months.
(b) Test the hypothesis that no more than 85% of the Canadian athletes use supplements. State the two hypotheses, the test statistic, and P-value.
How many treatment conditions were compared in the study? How many individuals participated in the study?
At a local college, of the 31 male students are smokers and 279 are non-smokers. Of the female students, are 40 smokers and 360 are non-smokers. A male student and a female student from the college are randomly selected for a survey. What is the ..
Depends on the satellite information illustrate what is the expected number µ of real forest fires on the Seward Peninsula.
(a) Find the 75th percentile for the distribution of exercise time per week. (round the answer to 2 decimal places) (b) What is the probability that a randomly selected adult has more than 5 hours of exercise per week? (round the answer to 4 deci..
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Forecast the average annual food price index for all years from 2008 to 2011. Use a three-year weighted moving average with weights of 0.5, 0.3, and 0.2. Use the largest weight with the most recent data.
The standard deviation of the differences d for the paired sample data s d = ____________
a newspaper article reported that the typical american family spent an average of 81 for halloween candy and costumes
You are required to submit the FINAL copy of this assignment, but you may first submit an optional DRAFT. This will allow you to receive qualitative feedback that can inform your revision.
a department store is running a promotion one saturday by giving out coupons for 10 of free merchandise. based on the
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suppose the cumulative distribution function of the random variable x is fx 0 when xlt-2 fx .25x .5 when -2 lt x lt
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