quiz 2

quiz 2 - Winter 11 quiz 2 graded Opens Friday Jan 14 at...

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Winter 11 quiz 2 graded. Opens Friday Jan 14 at 6:00 pm and closes tuesday Jan 18 at 10:00 am Review of attempt 1 Started on Monday, January 17, 2011, 06:23 PM Completed on Monday, January 17, 2011, 07:43 PM Time taken 1 hour 20 mins Grade 9.5 out of a maximum of 10 ( 95 %) Question 1 Marks: 1 Jerry is testing the following null hypothesis: Mue = 100 Mue # 100 N = 23 t = 1.85 What would be your estimation of the P value? Choose one answer. a. The p value will be larger than 0.01 and smaller than 0.05 b. The p value will be larger than 0.10 and smaller than 0.20 c. The p value will be larger than 0.05 and smaller than 0.10 Correct Marks for this submission: 1/1. Question 2 Marks: 1 A school district wants to study the impact of using computers on learning math among ninth graders. They randomly divide 500 students into two groups. One group learns math with and the other without computers. Given the following information: standardized math scores in 2006 for both groups standardized math scores in 2007 for both groups difference between the standardize math scores in 06 and 07 gain is the same as the difference between the 2007 and 2006 scores What would be the best way to examine the effect of computers on learning math? Choose one answer. A. Test the null about the difference in the math scores of the computer group from 2006 to 2007. B. Test the null about the difference of the 2007 math scores for the computer and non-computer group. C. Test the null about the difference in the math scores of the non- computer group from 2006 to 2007.

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D. Compare the gain in math scores from 2006 to 2007 for the computer and the non-computer group. Correct Marks for this submission: 1/1. Question 3 Marks: 1 One of the objectives of the "law related education" study was to find out if the control and the experimental group showed similar gain with respect to "attitude toward law and authority". Given the following data, what is the best answer?
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This note was uploaded on 05/02/2011 for the course STAT 101A taught by Professor Mahtashesfandiari during the Winter '11 term at UCLA.

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quiz 2 - Winter 11 quiz 2 graded Opens Friday Jan 14 at...

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