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Question: Smoking and sex. Wan, Friedman, Boutros, and Crawford (2008) studied a possible link between smoking and certain personality traits by sex. In a description of their participants (M ± SD ), the researchers stated that "of those who reported smoking, men (n = 61) and women (n = 93) reported similar daily cigarette consumption per day (men: 4.25 ± 6.25 cigarettes per day; women: 3.84 ± 5.26 cigarettes per day)" (Wan et a!., 2008)
(a) State the degrees of freedom for variance for men and for women.
(b) Assume these data are approximately normally distributed. Is it more likely that men or women smoked at least half a pack (10 cigarettes) per day? Explain.
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
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MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
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Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
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