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Question: Researchers have reported that the projected life expectancy for people diagnosed with human immuno - deficiency virus (HIV) and receiving antiretroviral therapy (ART) is 24.2 years (Schackman et al., 2006). Imagine that the researchers determined this by following 250 people with HIV who were receiving ART and calculating the mean. (The 24.2 is actually a projected number rather than a mean for a sample.)
a. What is the variable of interest?
b. What is the population?
c. What is the sample?
d. For the population, describe what the distribution of scores would be.
e. For the population, describe what the distribution of means would be.
f. If the distribution of the population was skewed, would the distribution of scores likely be skewed or approximately normal? Explain your answer.
g. Would the distribution of means be skewed or approximately normal? Explain your answer.
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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