Study guides, Class notes & Summaries

control groupA level of a factor that does not receive an actual treatment, this group may receive no treatment, a placebo, or the existing standard treatment placebo groupA group that receives what, to them, appears to be a treatment, but in fact is neutral and does not contain any actual treatment (e.g., a sugar pill in a medication study) randomizationMethod for assigning subjects different treatment groups based on chance (e.g., random number generator, flipping a coin), also known a...

dataa set of measurements taken on a set of individuals units for datacases variablesany characteristic of a case we have recorded categorical variabledivide cases into two or more groups quantitative variablemeasures a numerical quantity explanatory variablevariable that helps explain or influences changes in a response variable

Stat 200 Exam 2024 Questions and Correct Answers Rated A+

Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year, of the 211,693 students who took the calculus AB exam 102,598 of them were female ("AP exam scores," 2013). Estimate the difference in the proportion of female students taking the biology exam and female students taking the calculus AB exam using a 90% confidence level. n1=144,796 p1=84199/144796 = 0.582 q1=1-0....

Stat 200 Final Exam 2023 With Complete Solution

On a recent survey, Stat 200 students were asked: How low must the temperature go (in degrees Fahrenheit) for you to stop wearing shorts when you are out and about, such as going to class. It was also determined whether the student was a female or male. The goal is to compare the responses for the two genders. In this instance, which is true about the two variables? - correct answer the explanatory variable is categorical and the response variable is quantitative Which is untrue about the...

Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year, of the 211,693 students who took the calculus AB exam 102,598 of them were female ("AP exam scores," 2013). Estimate the difference in the proportion of female students taking the biology exam and female students taking the calculus AB exam using a 90% confidence level. X1 = number of female students who took biology ...

Stat 200 Final Exam 1 With Complete Solution...

Stat 200 Final Exam With Complete Solution...