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Question: In a raffle with 100 tickets, 10 people buy 10 tickets each. If there are 3 winning tickets drawn at random find the probability that:
a) one person gets all 3 winning tickets:
b) there are 3 different winners:
c) some person gets two winners and someone else gets just one.
State the Null Hypothesis and the Alternative Hypothesis
The associate finds that expenses for the second week are 5% more (in each category) than for the first week. Find the expenses matrix for the second week.
What is the most appropriate statistical test in situation and are there significant differences in the number of deliveries?
A researcher obtains a significant interaction and a significant main effect. Which significant effect should the researcher typically analyze first? Explain.
Marentette and El-Masri (2011) used logistic regression to identify predictors of obtaining seasonal influenza vaccination among hospital-based nurses in Canada. Their results are shown in table 1:
Write a current APA-style Results section based on your analyses - Create a simple scatterplot of the relationship between these variables (define interview scores as the x-axis and behavioral ratings as the y-axis).
a local school district claims that the number of school days missed by its teachers due to illness is below the
State which model the data in the table follows.- Plot the scatter diagram when X = life expectancy and Y = crude birth rate and fit a regression line.
If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test? one-tailed alternative hypothesis
it is well known that the time it takes to be served an order of wings at a downtown bar from the moment of placing the
sixty percent of all vehicles examined at a certain emissions inspection station pass the inspection. assuming that
According to this analysis, what is the probability that you will earn a positive nominal return on your investment
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