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According to the National Postsecondary Student Aid Study conducted by the U.S. Department of Education in 2008, 62% of graduates from public universities had student loans.
If we randomly sample 50 students at a time, what will be the mean and the standard deviation of the distribution of sample proportions?
Significant amount of improvement took place? Assume pulse rates are normally distributed. Test using = 0.05. Determine which test statistic applies, and calculate it.
question although the phenomenon is not well understood it appears that people born during the winter months are
Which distribution should be used to create 80% confidence interval?
in manoa valley the annual rainfall averages 43.6 inches with a standard deviation of 7.5 inches. a year is chosen at
Illustrate what decision should be made depended on the mini-max regret criterion. Decision based on the Mini-max criterion.
A teacher gives a pre and post test to her students, she wants to know if there is a difference in the number of points students earned on their pretest and post test.
find the z values based on a standard normal distribution for an 86 confidence interval for a proportion for a 78
assume that adults have iq scores that are normally distributed with a mean of 100 and a standarddeviation of 15 as on
samples of final examination scores for two statistics classes with different instructors provided the following
a search engine site claims that on average one out of five visitors clicks on an ad.a if 8 users visit the site what
In 1997, 39.4% of men had made orders by phone in the last 12 months a market research analyst feels that this percentage has declined because of internet purchases. she obtains a random sample of 500 men and determines that 191 of them have made ord..
in a game of change if you purchase one ticket out of the 100 tickets being sold at a cost of 5.00 how much money
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