An educational psychologist is examining response times to an on-screen stimulus. The researcher believes there might be a weak effect from age, but expects a more pronounced effect for different color contrasts. She decides to examine a black on white (B/W) combination compared to 2 alternatives: red on white (R/W) and yellow on blue (Y/B). Here is the data for response times (in milliseconds): Color Scheme B/W R/W Y/B 30 20 44 25 19 8. 10 43 34 21 16 25 16-17 15 31 4 21 20 21 9. 23 35 23 20 17 39 23 14 47 31 16 17 28 24 19 23 Age 18-19 12 15 36 20 36 45 33 37 36 25 35 31 27 31 36 39 19 43 27 20 43 21 41 26 20-21 23 26 39 16 29 40 18 27 28 24 29 17 P-values should be accurate to 4 decimal places and all other values accurate to 3 decimal places. Source SS df MS Age (A) F-ratio P-value Partial n2 2 Color (B) Interaction (A x B) Error 63 2) 41
An educational psychologist is examining response times to an on-screen stimulus. The researcher believes there might be a weak effect from age, but expects a more pronounced effect for different color contrasts. She decides to examine a black on white (B/W) combination compared to 2 alternatives: red on white (R/W) and yellow on blue (Y/B). Here is the data for response times (in milliseconds): Color Scheme B/W R/W Y/B 30 20 44 25 19 8. 10 43 34 21 16 25 16-17 15 31 4 21 20 21 9. 23 35 23 20 17 39 23 14 47 31 16 17 28 24 19 23 Age 18-19 12 15 36 20 36 45 33 37 36 25 35 31 27 31 36 39 19 43 27 20 43 21 41 26 20-21 23 26 39 16 29 40 18 27 28 24 29 17 P-values should be accurate to 4 decimal places and all other values accurate to 3 decimal places. Source SS df MS Age (A) F-ratio P-value Partial n2 2 Color (B) Interaction (A x B) Error 63 2) 41
Chapter4: Linear Functions
Section: Chapter Questions
Problem 33PT: For the following exercises, consider this scenario: The population of a city increased steadily...
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