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Do natural phenomena such as hemoglobin levels or the weight of ants really follow a normal distribution? If you add up a large number of random events, you get a normal distribution.
Statistics and Probability, Statistics
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A researcher randomly assigned 160 subjects into one of two groups: Atkins diet or Weight Watchers. The response variable was weight change in pounds after 6 weeks. The t-test results showed a p-value=.049. What can be c ...
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Researchers randomly assigned 25 beginning students of Russian to begin speaking practice immediately and another 25 to delay speaking for 4 weeks. At the end of the semester both groups took a standard test of comprehen ...
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An investor would like to add the following bond to her portfolio. The bond would be held for 7 years and then sold. The investor has gathered the following information to analyze the bond: Company XYZ Currency: CAD Face ...
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