Using the data below, put your data into the calculator (Minutes in L1 and Average in L2) then calculate the…

Using the data below, put your data into the calculator (Minutes in L1 and Average in L2) then calculate the correlation coefficient (r ). What is r ? Round your answer to three decimal places.

The math action research team at Sample school completed a fishbone diagram as part of the process to determine root cause of low math test scores.Teaching strategies is one of the possible causes.While investigating the various strategies; staff noticed that the test scores for one classroom were consistently higher that the others in the same grade.

It was discovered that although all staff used the math games that accompany the curriculum; one teacher had scheduled regular use of the math games.Could this be the difference?

 

Mrs. Alfred scheduled 40 minutes each week for her students to play math games.In addition, she has created a math game center.Students may attend this center each week for additional minutes of practice time.

Mrs. Alfred agreed to record data over several units to help determine if there is a relationship between the regular use of math games and math test scores.She had the students keep track of the number of minutes they spent playing math games during the next unit.

 

If the scatter plot shows a positive relationship – further investigation may be indicated.

 

Student List	Minutes of Math Games in 9 class days (80 class minutes)	Average Test Grade % correct
Student 01	81	84
Student 02	50	45
Student 03	75	75
Student 04	60	52
Student 05	75	72
Student 06	80	96
Student 07	65	62
Student 08	83	82
Student 09	80	90
Student 10	78	78
Student 11	96	96
Student 12	94	94
Student 13	78	62
Student 14	88	100
Student 15	85	85
Student 16	79	88
Student 17	38	25
Student 18	87	91
Student 19	100	100
Student 20	90	99
Student 21	80	90
Student 22	91	95
Student 23	80	80
Student 24	73	73
Student 25	85	95