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A nursing professor gives a pre-test on each unit and administers the same test at the conclusion of each unit. She compares the pre and post tests to determine if there is a statistical difference in the knowledge of her students following each unit. If the scores are normally distributed, what is the appropriate statistical test?
Wilcoxon signed-ranks test
Pearson chi-square test
a paired samples t test
Mann-Whitney U test
Discuss any limitations (inaccurate data; incomplete information; not enough samples for testing)can have an regression analysis.
Liking for a vanilla milkshake. Naleid and colleagues (2008) asked how the interaction of the ingredients corn oil and sucrose enhanced liking.
Find the constant c.- Find the marginal PDF for a subset of two of the three random variables.- Find the marginal PDF for one of the three random variables.
A frequency curve is constructed from the test scores of 200 students. Sixty percent of the total area under the curve falls between test scores of 25 and 45.
a random sample of size 56 from a normal population showed a mean of 63 and a sum of squares of deviation from the mean
Use software to access the survey data and produce a 95% confidence interval for the proportion of all students who never eat meat
In your survey, you determine that 273 voters are in favor of the 4% increase to the gasoline sales tax. Determine the value of the test statistic.
Assume that the number of shares traded on the ASX is a normal random variable with a mean of 992 million and a standard deviation of 252 million
Assume a sample of 300 subscribers to The Wall Street Journal found 165 subscribers with an income over $131,000 and 135 subscribers with an income under $131,000. Can you conclude that there is any difference between the median incomes of the two..
include a title page with your assignment in current apa. answers must be clearly labeled and appear in consecutive
In a certain garage, there are three mechanics per work shift of eight hours. The garage is open 24 hours a day. Customers arrive according to a Poisson process with rate λ = 2.5 per hour. The time a mechanic takes to perform an arbitrary task is ..
What is the probability that a randomly selected executive from this group is a male whose functional background is marketing?
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