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Internet sites often vanish or move, so that references to them can't be followed. In fact, 16% of Internet sites referenced in major scientific journals are lost within two years after publication.
If a paper contains 9 Internet references, what is the probability (±0.0001) that all 9 are still good two years later? Assume that the internet sites are independent of each other.
what does it mean to say that your score on test one in statistics was in the 90th percentile?
What is the 95% confidence interval for the proportion of all delinquent customer accounts at this manufacturing company?
a bagel shop wants to estimate their daily demand for their popular poppy seed bagel. the shop owner determined that
at a local university when scheduling classes the probability that there is no evening classes available on a certain
Since 38% is less than 40%, does this mean that immediate production cutbacks are needed or can this difference of 2 percentage points be attributed to sampling?
A university reports that the middle 50% of the SAT I math scores of its students were between 565 and 690, with half the scores above 605 and half below. What SAT I math scores would be considered outliers for that university?
Consider you have completed a survey of employees working in a call center doing customer service for a major manufacturing company.
Provide a 99% confidence interval for the population proportion of college students who worked to pay for tuition and living expenses.
A nationwide standardized test taken by high school juniors and seniors may or may not measure academic potential, but we can nonetheless examine the relationship bewteen scores on such test and performance in college.
the verbal part of the graduate record exam has a mean ? of 500 and a standard deviation ? of 100. use the normal
Differentiate between descriptive statistics and inferential statistics. Provide an example for each. How does correlation analysis differ from regression analysis? What does a correlation coefficient reveal? Is correlation the same as causation?
hannah dakotas experiment obtained reaction time data using a factorial design with two independent variables. she
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