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January 07, 2019

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Fill in the missing words to the quote: “Statistical methods may be described as methods for drawing conclusions about ____ based on _ computed from the _______.

January 06, 2019

> populations, statistics, samples

An experiment was performed upon rats to investigate the effect of ingesting Alar (a chemical sprayed on apple trees to keep fruit from dropping before ripe) upon subsequent cancer rates. The following variables were measured: gender (0=female, 1=male); weight (g); dose of Alar (nil, low, high); number of tumors. The typical weight of a rat is about 800 g and the weights were rounded to the nearest gram. The number of tumors is around 10. Which of the following is FALSE

January 06, 2019

> Number of tumors is discrete and is ordinal scale

Last year a small statistical consulting company paid each of its five statistical clerks $22,000, two statistical analysts $50,000 each, and the senior statistician/owner $270,000. The number of employees earning less than the mean salary is

January 06, 2019

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