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Joan Nguyen recently claimed that the proportion of college-age males with at least one pierced ear is as high as the proportion of college-age females. She conducted a survey in her classes. Out of 107 males, 20 had at least one pierced ear. Out of 92 females, 47 had at least one pierced ear. Do you believe that the proportion of males has reached the proportion of females?
Find the 99% confidence interval for the population proportion.
In any game, Donovan McNabb completes a number of passes K that is Poisson distributed with expected value α = 20. If NFL yardage were measured with greater care (as opposed to always being rounded to the nearest yard).
a mass of 46 grams of oxygen fill a weighted piston-cylinder device at 47kpa and 140degree c. the device is now cooled
Carefully sketch a tree diagram to illustrate the possible outcomes for this experiment.- Find the sample space for this experiment.
Now that you are an adult, you decide to test one of the truisms passed along by your mother: "Cheaters never win in the end." You randomly assign a group of 20 children to either cheat or to play fair on a scavenger hunt.
Baseball 2006. American League baseball teams play their games with the designated hitter rule, meaning that pitchers do not bat.
For the preceding situation, discuss the advantages and disadvantages of using a quasi-experimental design in contrast to conducting a true experiment.
Conduct a two-way analysis of variance withageandstrainas the predictor variables andspeedas the response variable. Be sure to include the interaction term betweenageandstrainin the model. Use the GPLOT procedure to create an interaction plot with av..
Obtain the Normal Equivalent Deviates corresponding to the observed values of X and use these to produce a Q-Q plot. Does your plot indicate that these data are consistent with coming from a Normal distribution?
flaws occur in mylar material according to a poisson distribution with a mean of 0.05 flaw per square yard. round your
Standard deviation was $15.50. For 56 Model B ovens, the mean repair cost was $85 and the standard deviation was $30. At alpha=.01, would you buy Model A?
a card is drawn at random from a standard 52-card deck. the conditional probability that the card is a 2 given that a 2
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