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The British Journal of Sports Medicine (Apr. 2000) studied the effect of massage on boxing performance. Two other variables measured on the boxers were blood lactate concentration (in mM) and the boxer's perceived recovery (on a 28-point scale). On the basis of information provided in the article, the data recorded in the accompanying data file were obtained for 16 five-round boxing performances in which a massage was given to the boxer between rounds. Conduct a test to determine whether blood lactate level (y) is linearly related to perceived recovery (x). Use alpha = .05.
Find the p-value for testing the hypotheses you gave in the previous problem. Show all decimal places in your answer.
Data in table represent number of consumer complaints against major U.S. airlines. If one complaint from table is arbitrarily chosen, determine the probability that it was filed against United Airlines.
Compute the mean number and median number of apples in a bag.
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
A month of sales data are collected on sales of different types of computer products Run the t-tests to determine:
At the .01 significance level, is there a relationship between job pressure and age?
Use the study to estimate the risk of an air bag fatality on a child seated on the front passenger seat.
Suppose the manufacturers claim is right, determine the probability the mean of sample is 47,840 miles or less?
Determine the variance of X? (Illustrate your computation either in Table or in Equation form)
What is the expected number of Republicans who will win office in the coming election?
Determine the lowest weight a student can have and still be qualified to enter the school.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, & 10.
Comment on their success or failure to meet this goal.
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