SRMP_Statistics.pdf

# If the means of the two sets are very different then

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Science Research Mentoring Program STATISTICS © 2013 American Museum of Natural History. All Rights Reserved. 33 WORKSHEET: T-tests & Chi Square (continued) E X E R C I S E I I : S A M P L E S I Z E A N D A C C U R A C Y ? A C C U R A C Y & P R E C I S I O N Accuracy is how close a measured value is to the ________________ value. Precision is how close the measured values are to ________________________. High Accuracy Low Precision High Accuracy Low Precision High Accuracy High Precision So, if you are playing soccer and you always hit the left goal post instead of scoring, then you are not _____________________, but you are _______________________!
Science Research Mentoring Program STATISTICS © 2013 American Museum of Natural History. All Rights Reserved. 34 Session Six: Support or Rejection of Hypothesis: ACTIVITY Accuracy & Precision P R O C E D U R E Collect the length and width data from each of the other groups. Record the data in your lab notebooks. 1. Our groups sample size was: 2. The class sample size was: 3. What is the range of length and width for your data? Length: Width: 4. What is the range of length and width for the class data? Length: Width: 5. Is there a difference in these measurements? 6. What was the class average for length _______ and width _______. 7. What was your averages for length ______ and width ______. 8. How does your average compare to the class average? 9. Do you feel confident with your sample size? What could have been done to achieve greater confidence?
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• Fall '17
• Statistics, Natural history, American Museum of Natural History, American Museum, Science Research

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