Question List for "Stats: Modeling the World"

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Statistics » A researcher found that a 98% confidence interval for the mean hours per week spent studying by ... New
Started by BrownTown3
226 Aug 30, 2019
Statistics » A teacher wants to see if two different forms of an exam are equivalent or if one of the exams is ... New
Started by OSWALD
273 Aug 30, 2019
Statistics » The average American sees 3.9 movies at the theater each year. A curious student polls 30 friends ... New
Started by azncindy619
318 Aug 30, 2019
Statistics » Pew research reported in 2013 that 15% of American adults do not use the internet or e-mail. They ... New
Started by bcretired
204 Aug 30, 2019
Statistics » A pharmaceutical company has a drug they think is better at lowering blood pressure than the current ... New 190 Aug 30, 2019
Statistics » A statistician consulting for a state department of transportation conducts a study to see if the ... New
Started by SAVANNAHHOOPER23
174 Aug 30, 2019
Statistics » A city planner wants to construct a confidence interval for the proportion of workers who would take ... New
Started by dollx
1,006 Aug 30, 2019
Statistics » We have calculated a confidence interval based on a sample of size n = 100. After looking over our ... New
Started by maychende
348 Aug 30, 2019
Statistics » Which of the following will make a confidence interval narrower?I. increase the confidence level.II. ... New
Started by kodithompson
261 Aug 30, 2019
Statistics » Births A city has two hospitals, with many more births recorded at the larger hospital than at the ... New
Started by melina_rosy
275 Aug 30, 2019