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Question: Anton and Edward often play a game together, so they decide to see whether or not who goes first affects who wins. They keep track of 50 games, with each going first 25 times. Of the 25 times Anton went first, he won 15 times. Of the 25 times Edward went first, he won 12 times. In constructing a contingency table for these results, the two variables are "Who went first?" and "Did the person who went first win?"
a. What are the categories for each of the two variables?
b. If the explanatory variable is used to define the rows of the contingency table, which variable would be the row variable?
c. Construct a contingency table for the results.
d. Overall, what percent of the games were won by the person who went first?
e. Is there an advantage to going first? Explain.
A company claims that its medicine, Brand A, provides faster relief from pain than another company's medicine, Brand B.
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Internet sites often vanish or move, so that references to them can't be followed. In fact, 13% of Internet sites referenced in papers in major scienti?c journals are lost within two years after publication.
Draw a scatterplot of y = August temperature versus x = latitude.- Is the pattern linear or curvilinear? What is the direction of the association?
Age. In a study of how depression may affect one's ability to survive a heart attack, the researchers reported the ages of the two groups they examined.
Short Response: You are mailing 19 packages. It costs between $9 and $12 to mail each package. Estimate the total cost. Explain the method.
Examine the data and determine if the distribution of IQ scores could be normal. You should confirm or reject normality by means of a visual inspection of the shape of the distribution.
a meteorologist claims that the average of the highest temperature in the united states is 98 degrees. a random sample
What is the minimal number of days a person must watch to be at least 96.8% sure of seeing one or more hawks migrating?
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x0- 1124y3- 2368based on the equation from 28 what is the predicted value ofnbspynbspifnbspxnbsp 3?nbspshow all work
Based on the results shown in the following table, test at the 0.05 level of significance whether there is a relationship between parents' reaction to the course and the number of children that they have in the school system
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