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You are trying to estimate the number of CSN students with iPhones. A random sample of 130 students reveals that 65 of them have an iPhone. Estimate the percentage of all CSN students who have iPhones with 95% confidence.
What percentage of items will weigh between 6.4 and 8.9 ounces?
Finds that their mean travel time is = 22.5 minutes. What are the null and alternative hypotheses for testing whether the true mean is different from 20 minutes?
Assume a random sample of 50 architects and engineers is selected. How likely is it that the random sample contain five or fewer women in these positions.
According to a national survey of 1,500 Silverman Sachs customers, 1,050 of them were either satisfied or very satisfied with their financial advisor.
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 98% confidence that the sample mean is within 2 minutes of the population mean.
it is your birthday and you are waiting for someone to write you a birthday message on facebook. on average on your
Find the questions based on multiple regression - The coefficient of determination for the above model is approximately
Why is "rounding-down" the LP solution the suboptimal way to solve Integer programming problems? Can you describe why?
A local bank wants to install motion detector burglar alarms. Each has a 70% chance of detecting a burglar. If the bank wants to be 99% certain of detecting a burglar how many need to be installed?
the sat reasoning test formerly called the scholastic aptitude test is perhaps the most widely used standardized test
Discuss the strengths and weaknesses of correlational and regression studies; discuss concepts such as positive and negative correlations, correlation coefficients, confounding, and causality.
Why does Bob continue to play the video game even after losing $300?
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