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Data from the Bureau of Labor Statistics indicate that in one recent year the unemployment rate in Cleveland was 7.5% and the unemployment rate in Chicago was 7.2%. Suppose that both figures are based on random samples of 1,000 people in each city.
Test the null hypothesis that the unemployment rates in both cities are equal versus the alternative hypothesis that they are not equal. What is the p-value? State your conclusion.
researchers studied the effects of adding an exercise program to dieting in the achievement of weight loss. a sample of
A study of 200 commercial firms revealed the data below. What is the probability that a particular firm will have $1 million or more in income after taxes?
1) Twenty-five factory workers were asked how many vacation days they take a year. The average of the sample was 22.85 days, and the standard deviation was 5.80 days. In the past HR uses an average of 25 vacation days per worker in order to ..
a researcher claims that the average age of people who buy lottery tickets is 61. a sample of 30 is selected and their
a new grug had a potency advertised at 75. given the following smaple datan25x bar 76.6s1a check manufacturers claim
Assume that the following four examines were tested as part of a large group that had a normally curved distribution.
This problem related to Basic Statistics and it discuss about the methods that can be used to collect reliable data for both qualitative as well as for quantitative research
lauren plans to deposit 3000 into a bank account at the beginning of next month and 225month into the same account at
In an experiment to compare the bond strength of two different adhesives, each adhesive was used in five bondings of two surfaces, and the force necessary to separate the surfaces was determined for each bonding.
suppose that a particular candidate for public office is in fact favored by 48 of all registered voters in the
The mean maximum oxygen uptake for elite athletes has been found to be 80 with a standard deviation of 8.1. Assume that the distribution is approximately normal.
If you take the mean weights for random groups of 10 adults and form a new distribution, how will this new distribution compare to distribution of individuals?
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