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The following is from an article titled "After the Workout, Got Chocolate Milk?" that appeared in the Chicago Tribune (January 18, 2005): Researchers at Indiana University at Bloomington have found that chocolate milk effectively helps athletes recover from an intense workout. They had nine cyclists bike, rest four hours, then bike again, three separate times. After each workout, the cyclists downed chocolate milk or energy drinks Gatorade or Endurox (two to three glasses per hour); then, in the second workout of each set, they cycled to exhaustion. When they drank chocolate milk, the amount of time they could cycle until they were exhausted was similar to when they drank Gatorade and longer than when they drank Endurox.
The article isn't explicit about this, but in order for this to have been a well-designed experiment, it must have incorporated randomization. Brie?y explain where the researcher would have needed to randomize in order for the conclusion of the experiment to be valid.
What is the probability that the airline will not have enough seats for all the ticket holders who show for the flight? (Use 3 decimal places)
a company has 1300 items. in a sample of 120 items the historical cost of each item was compared with the audited value
hospital workers who are routinely involved administrative radioactive tracer to patients are subject to a radiation
What is the real world value of the y-intercept and slope in a regression equation? Other than statistics problems, why should I care?
Suppose a friend of a friend claimed to have ESP and agreed to sit just on time and guess at 100 cards. Suppose she made 36 matches. Calculate the probability of this many, or more, matches if only chance is at work, and carefully write a conclusion.
a. Construct an ordered stem and leaf display to sort the data. b. After examining the stem and leaf display prepared in a., comment on the possible distribution of the number of cases purchased by the supermarket chain.
Determine the mean and the standard deviation of the sample.
How is the criminal justice system portrayed in the media and what impact does the media have on a viewer's perception as to the system's efficacy in dealing with crime?
Critically discuss some concepts behind variance analysis? Why is it important to test for variances in your data? Explain. How is variance analysis used in health care administration?
listed below are amounts of strontium-90 in mbq per gram of calcium. in a simple random sample of baby teeth obtained
let x and s2 be the mean and variance of a random sample size n16 from the normal distribution nu gamma2a find d using
The probability that a standard normal random variable, Z is between 1.00 and 3.00 is
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