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A recent data showed that 78% of the statistics students pass the class.
i) If we randomly select 20 statistics students, what is the probability that exactly half of them would pass?
ii) If we randomly select 30 statistics students, what is the probability that less than 10 of them would pass?
iii) If we randomly select 40 statistics students, what is the probability that at least 30 of them would pass?
the number of chocolate chips in an 18-ounce bag of chocolate chip cookies is normally distributed with a mean of 1250
What type of survey method the researcher could use and why and what sampling method could the researcher use to select his/her sample and why
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If the distribution of movie admission charges is approximately normal with a standard deviation of $ 0.89 . What is the probability that a randomly selected admission charge is between 6 and 8.2 dollars?
In regression analysis, the residuals represent
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Develop the estimated regression line. Jensen expects to use the machine 30 hours per week, develop a 95% prediction interval for the company's annual maintenance expense.
In the previous exercise there were two possible outcomes; reject the null hy- pothesis or fail to reject the null hypothesis. Explain in your own words what is meant by these outcomes.
The administration of Midwest State University wants to know if arrangement of chairs affects student participation in classrooms. What would be a good operational definition of the dependent variable in an experiment designed to measure this rela..
twelve different video games showing substance use were observed and the duration times of game play in seconds are
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