Kindergarten students were participants in a study investigating fine motor skills of 37 children. The children had their fine motor skills measured before the study (a combination of hand use, eye-hand coordination, and manual dexterity) and again after undergoing 7 months of occupational therapy. With the instrument used, high scores indicated stronger fine motor skills. Summary statistics are given below: Difference  n Sample Diff Std. Err. Min Max d = Pre - Post  37 -7.8109 2.0715 -36 9 Determine what positive and negative differences mean regarding a student's fine motor skills. Pay attention to the order of subtraction in the output.  A positive difference means the Select an answer post-test pre-test  score was greater than the Select an answer post-test pre-test  , implying fine motor skills were Select an answer weakened strengthened  over the 7 months. A negative difference means the Select an answer post-test pre-test  score was greater than the Select an answer post-test pre-test  score, implying fine motor skills were Select an answer weakened strengthened  over the 7 months.  Can one conclude the fine motor skills in a population similar to these students would be stronger after 7 months of occupational therapy? Use a significance level of 0.01. Refer to your answer above to help with the alternative hypothesis of strengthened scores.  Select the appropriate hypotheses to test the claim made. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0 Ho:μd=0Ho:μd=0 Ha:μd<0Ha:μd<0 Ho:μd=0Ho:μd=0 Ha:μd>0Ha:μd>0   =      reject HoHo if probability ? > < ≠   αα  TS: t =  probability = Select an answer 0.9997 0.0003 0.0006  decision: Select an answer fail to reject H₀ Reject H₀  At the 0.01 level, there Select an answer is not is  significant evidence to conclude occupational therapy strengthens the mean fine motor scores.

Kindergarten students were participants in a study investigating fine motor skills of 37 children. The children had their fine motor skills measured before the study (a combination of hand use, eye-hand coordination, and manual dexterity) and again after undergoing 7 months of occupational therapy. With the instrument used, high scores indicated stronger fine motor skills. Summary statistics are given below:

• Determine what positive and negative differences mean regarding a student's fine motor skills. Pay attention to the order of subtraction in the output. 
• A positive difference means the Select an answer post-test pre-test  score was greater than the Select an answer post-test pre-test  , implying fine motor skills were Select an answer weakened strengthened  over the 7 months. A negative difference means the Select an answer post-test pre-test  score was greater than the Select an answer post-test pre-test  score, implying fine motor skills were Select an answer weakened strengthened  over the 7 months. 

Can one conclude the fine motor skills in a population similar to these students would be stronger after 7 months of occupational therapy? Use a significance level of 0.01. Refer to your answer above to help with the alternative hypothesis of strengthened scores. 

• Select the appropriate hypotheses to test the claim made.
  Ho:μd=0Ho:μd=0
  Ha:μd≠0Ha:μd≠0

  Ho:μd=0Ho:μd=0
  Ha:μd<0Ha:μd<0

  Ho:μd=0Ho:μd=0
  Ha:μd>0Ha:μd>0
•   =      reject HoHo if probability ? > < ≠   αα 
• TS: t = 
• probability = Select an answer 0.9997 0.0003 0.0006 
• decision: Select an answer fail to reject H₀ Reject H₀ 
• At the 0.01 level, there Select an answer is not is  significant evidence to conclude occupational therapy strengthens the mean fine motor scores.