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Question 1
Suppose that we have ratings of a restaurant from a sample of 72 customers. Each of the ratings is either "poor," "fair," "good," or "very good," Please state and then explain which of the following two options is more suitable to test whether the typical rating is "good": A hypothesis test for the population mean or a hypothesis test for the population median?
Question 2
Suppose that 14 individuals take a two-day course that is supposed to improve their knowledge of Web page design, which is rated as "not proficient," "proficient," or "advanced proficient." Of the 14 individuals in the sample, 12 are rated higher after the course than before, 1 individual is rated lower, and 1 individual's assessment is unchanged. Using a significance level of 0.05, can we conclude from this information that the course is successful in improving individuals' knowledge of Web page design?
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
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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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