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A student wanted to test whether there was a difference in the mean daily hours of study for students living in four different dormitories. She selected a random sample of 50 students from each of the four dormitories. What is the null hypothesis for this situation?
Compute the difference in traffic counts on the 6th and the 13th. Can you conclude that people tend to stay home more on Friday the 13th?
Theorists maintain that the development of virtuous character requires the right sort of society and culture. What are the arguments for and against that claim?
The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years.
Surveys have been widely used by politicians around the world as a way of monitoring the opinions of the electorate. Six months ago, a survey was undertaken to determine the degree of support for national party leader.
Under what circumstances should a nonparametric test be used? Explain. What are the strengths and weaknesses of nonparametric tests? Can the outcomes of nonparametric tests be generalized to populations?
Assume the population is normally distributed, the confidence level is 95%, n = 12, and σ is unknown.
Using the information from above, what is the probability that fewer than 45 of the claims have been padded? Round your answer to the nearest thousandths place.
What is the standard error of measurement for the test? What range of scores would you expect an individual who made 54 on the test to make on another test of similar difficulty? Assume you want to be 68% accurate in your estimate.
He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Mathml equation = $32,000 and mathml equation = $3000. If 100 teachers are randomly selected, find the probability that their mean salary is greater than $32,500.
Perform a two-tailed hypothesis test on both the legal services satisfaction and the sentence satisfaction variable's data using a .05 significance level.
Convert the height of the stack of pennies into meters. Calculate how many pennies would be needed to make a tower 1 billion meters tall. Give answer in both standard calculation and in scientific notation.
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