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The owner of a small manufacturing plant employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The six distances are listed below:
61 33 18 51 56 18
Listed below are the amounts of weight change (in pounds) for 12 women during their first year of work after graduating from college. Positive values correspond to women who gained weight and negative values correspond to women who lost weight.
4 -8 14 10 -9 12 -6 1 0 4 -3 9
Find the mode(s) for the given sample data.
78 25 78 13 25 29 56 78
Find the variance for the given data. Round your answer to one more decimal place than the original data.
17.5 13.5 16.9 14.5 16.1
Find the number of standard deviations from the mean. Round your answer to two decimal places.
The test scores on the Chapter 3 mathematics test have a mean of 62 and a standard deviation of 11. Andrea scored 86 on the test. How many standard deviations from the mean is that?
1. If the margin of error for a 95% confidence interval is 0.015, the sample size is . (Give your answer as a whole number.)
an article in the journal of the environmental engineering division distribution of toxic substances in rivers 1982
Using the given value, characterize the nature of the relationship between age and hours of television watching in 1996.
suppose that the weights of cinder blocks at a local construction yard follow a normal distribution with mean of 20 kg
suppose that the middle 68 of families of a certain demographic monthly food expenditures fall between 293.45 and
suppose that on a statistics test the mean greade in a class is 75 and the population standard deviation is 8. assume
Is there evidence of a difference in objection to sharing information among the organizational groupings? (use α = 0.05)
Researchers routinely choose an alpha level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g., 0.01)? What are some situations in which you might accept a higher level (e.g., 0.1)?
on monday mornings the first national bank only has one teller window open for deposits and withdrawals. experience
The resources use data and statistics to support answers to the same question, but they reach opposite conclusions! The textbook authors use the Gini Index to argue that income inequality is increasing. Perhaps it could be said that statistics are..
a fast-food restaurant sells hamburgers and chicken sandwiches. on a typical weekday the demand for hamburgers is
You're considering paying $5 to buy a ticket in a local lottery. You were told that 10,000 tickets will be sold. There are 5 prizes. The first prize is $5,000, the second is $1,000, the third is $500, the fourth is $100 and the last prize is $10.
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