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Before
50
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62
68
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After
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94
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86
Data was collected overall fitness before and after a physical fitness program. A higher score is indicitive of better fitness. Given the following data was the program effective. Use the paired t test at a= 0.01
a standard deck of cards contains 52 cards. one card is randomly selected from the deck.a. compute the probability of
please review the following real-world ratios for johnson amp johnson and pfizer for the year ended 2012 and address
you wish to test if there is a difference in the average time male and female students spend studying for a business
Find a 95% confidence interval for the difference between this year and last year in the mean number of units sold at all retail stores and interpret the results.
Senate should not worry. He polls one legion of 1,000 men and finds that 340 of them are barbarians. What is the test statistic for this hypothesis test?
1. a researcher examines the records of all registered voters in one city and finds that 43 are registered democrats.
Carry out t test and find out whether or not demand and unit price are related. Let a=.05. Carry out an F test and find out whether or not demand and unit price are related.
generate a chart or table that lists a variety of crimes types. your chart should include at least four types of crimes
a simple random sample of 300 properties is taken from a collection of 9500 properties 3000 of which do not have
you measure the lifetime of a random sample of 64 tires of a certain brand. the sample mean is x 50 months. suppose
Develop the opportunitiy loss table and compute the expected opportunity loss for each product. Determine how much the firm would be willing to pay to a market research firm to gain better information about future market conditions.
Identify the population and the sample: A survey of 787 small-business managers found that 72% are optimistic about the future of their company.
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