Answer the following questions based on the activity chart.
a. How many calories are burned during 4 hours of cross-country skiing?
b. Jane played tennis for 3 hours while Carolyn played volleyball for 4 hours. Who burned more calories, and how many more?
c. Lyle went snowshoeing for 4 hours and Maurice went cross-country skiing for 5 hours. Who burned more calories, and how many more?
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A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
- Twenty five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs.# R Obs.# R L L Obs.# R 1 113 8 116 166 22 100 2 105 105 9 75 146 23 89 3 130 133 10 96 123 24 85 4 101 108 11 122 135 25 88 5 138 115 12 103 6 118 170 13 116 7 87 103 14 107 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. 1. Test Stat: L 137 2. Critical Region: a. T> 2.492 b. Tabs (2.492) c. T> abs (-2.492) d. T < -2.492 Obs.# R 15 118 16 103 17 111 18 104 19 111 147 20 89 87 21 78 145 78 107 84 148 112 93 76 L 116 78 101 123 3. Conclusion:…arrow_forwardUse the accompanying diagram to answer the questions that follow. J K Marrow_forwardThe value for R-Sq is unknown. Please solve for questions d, e and f. Thank you.arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill