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In its third year, a football team averaged 16,050 fans per game, with a standard deviation of 2,500 fans.
A.) What is the probability that the number of fans at any given game was greater than 20,000?
B.) What is the probability that the number of fans at any given game was less than 14,000 or greater than 17,500?
The correlation between IQ and the verbal SAT score among the seniors at GWB High School is .90; it is significant. The mean IQ is 100 with a standard deviation of 10.
Why does Bob continue to play the video game even after losing $300?
The number of viewers of American Idol has a mean of 29 million with a standard deviation of 5 million. Assume this distribution follows a normal distribution.
Calculate separate confidence intervals for the numbers of days absent for Clinic A and Clinic B, respectively.
The food distributor selects a sample of stores located in areas where he believes the shoppers are receptive to trying new products. What type of sampling does this represent?
Twenty air samples were obtained and the carbon monoxide concentrations were recorded. the results in ppm (parts per million) were:
The standard screening test for Down's Syndrome is based on combination of maternal age and the level of serum alpha-fetoprotein. Using this test 80% of Down's syndrome cases can be identified, while 5 % of normals are detected as positive.
If you were to draw a scatter plot of the number of women in the workforce versus the number of Christmas trees sold in the United States for each year between 1930 and the present
Please perform a hypothesis test using a .05 significance level on the following information. Next please perform a regression analysis as well as providing a scattered diagram.
Conduct the following test using 95% level of confidence.
There are 10 questions on a true-false test. A student feels unprepared for this test and randomly guesses the answer for each of these.
Test the hypothesis that the annual incomes of corporate trainers in areas of more than 500,000 are significantly more than those in areas of less than 100,000.
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