Stats Midterm Chapters: 4, 5, 8, 9, Vocab Questions / 31 terms / 23 terms are used / 8 are not used. 6 pages / 40 questions / 43 points Chapter 4 Learning Goals: 1.Correctly identify response and explanatory variables. [ex 4.1, 2, 3 – pgs 98-99, Notes] 2.Correctly draw a scatterplot by hand and with a calculator. [Box pg 100, Notes] 3.Be able to correctly identify form, direction and strength of a scatterplot. [pg 101 box, pg 102 ex 4.4, fig 4.2 pg 103, Notes] 4.Be able to implement categorical variables on a scatterplot. [pg , Notes] 5.Correctly calculate the correlation r manually using the formula and with the calculator. [pg 106 box, pg 107, Notes] 6.Correctly interpret the direction and strength of a correlation value and apply the 5 facts about correlation to answer questions in context. [pgs ,Notes] Chapter 5 Learning Goals: 1.Use the calculator to find the slope and y-intercept of a regression line. 2.Write the equation of a regression line. 3.Graph a regression line on a scatterplot. 4.Explain the meaning of the slope and y-intercept of the regression line in the context of the problem. 5.Explain the meaning of r and r 2 in the context of the problem. 6.Sketch a residual plot. 7.Explain what a residual plot shows about the accuracy of a regression line. Chapter 8 Learning Goals: 1.Given an experimental design, correctly identify the population and the sample. 2.Correctly identify the individuals a population consists of. 3.Be able to identify a biased sample design and explain the source of bias. 4.Correctly use Table B to choose an SRS. 5.Correctly identify survey questions that may produce bias. 6.Correctly explain variances in margin of error between segments of a population. Chapter 9 Learning Goals: 1)Differentiate between an observational study and an experiment. [Box pg 223 bottom, ex 9.1/2/3 pg 225, Notes] 2)State what the experimental units, factors, levels, treatments and response variables are for a given experiment description. [Box pg 226 top, ex 9.4/5/6 pg 227, Notes] 3)Employ randomization to divide experimental units into treatment groups and diagram an experimental design. [pg , ex 9.8/9/10, Notes] 4)Apply the 3 principles of randomized comparative experiments. [pg , ex 9.11/12/13, Notes] 5)Explain how the placebo effect, blinding and lack of realism can affect an experiment. [pg , ex 9.14/15, Notes] 6)Describe how blocking and matched pairs designs can reduce the effect of lurking variables and subject variation. [pg , ex 9.16/17/18] Chapter 10 Learning Goals: 1)Correctly describe randomness in terms of long run probability. [Text pg , Notes]. 2)Use the idea of probability to to describe long-run proportions. [Text pg , Notes]. 3)Detect incorrect assignments of probability to individual and grouped events. [Text pg , Probability Rules, Notes]. 4)Use basic rules to to find the probabilities of shared and exclusive outcomes. [Text pg , Probability Rules, Notes]. 5)Calculate probabilities in finite and continuous probability models. [Text pg , Notes]. 6)Use correct notation when writing statements about random outcomes. [Text pg 275, 276, Notes].