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Q1) 75 Democrats and 60 Republicans were studied on their support of gun control legislation using standardized measure (high scores representing greater support of gun control). Democrats had mean level of support for gun control legislation of 6.0 with standard deviation of 1.2. Republicans had mean level of support of gun control legislation of 4.9 with standard deviation of 1.4. Using data provided, test if there is a difference between means at alpha =.05.
Q2) Sex differences in "openness to experience" were examined by administering quantitative test of this characteristic to 7 men and 5 women (higher the score, less open to experience). Scores for 7 men were: 12, 10, 6, 9, 15, 12, 14 and scores for the 5 women were: 8, 5, 9, 4, 6. What can be concluded about sex differences in openness to experience?
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?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
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.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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