Is this right?
(2 points) A statistics teacher gives their clam a pop quiz on review day; they them compare those quiz scores (by Individual) to their actual scores on the exam. Using the data in "Practice Set 5 Data. " for this problem, In them evidence at a - 0.05 that the review had any effect? (a) What test are you ming? Give a brief explanation for your (b) What are the population(s) which are mun (c) Clearly state both the mall and alternative hypoth (d) Determine Com and famp, and/er a p value. (e) What decision do you make about your hypothme? Briefly, interpret this am swer in terms of the actual situation - what is the teacher () Construct an app wal for the di nice In man of scores (g) Include an effect sing index and A). two sample + test independent equal because we are testing whether or not our two populations are in fact the same two tailed b). Our population is all pop quizes and exams given to students cs . H . : Hquit Hquit & Haast; review does not have an effect on exam scores H . ; Hiquizs Worst, re 4. review does have an effect on exam scores d ) . teri = 2.0744 + trample = - 0. 94581 e), We fail to reject Ho; We lack strong statistical evidence to say that the review had an effect on exam scores F). A 95% confidence Interval for the difference, means of scores is [ - 8. 48, 3.08] "). The effect size is - 0. 29 w had a small jessica rickerby Autosave Con - 50 Practice Set #5 Data . Excel File Insert Drasy Page Layout Formulas Data Review View Help ACROBAT E Insert General LOD Calibr -11 AA = EB Wrap Text O Delete Formal as Call Sort & Find & Paste ES30 Merge & Center $ - 6 9 68 8 Formatting . Table - Styles Formal " Filter - Select - Styles Cells Enticing Clipband Font E20 G M B D E 1 Student Quiz Exam Problem #9 A statistics teacher gives a pop quiz to their student before a review 2 78 80 The teacher then compares each individual student's performance 94 90 on the quiz to the exam, to see if the review had any effect on grades, at 93 94 alpha = 0.05. 84 91 69 72 99 100 8 91 90 9 8 88 91 9 89 88 10 81 85 11 72 80 73 80 83 82 71 78 NUGEN=2 85 88 97 95 68 74 73 81 73 20 90 94
