Scientific Method Quiz 1 Period: Name
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| Scientific Method Quiz 1 Period:_____ Name:_____________________________
1. In a study of therapeutic touch, 10 people out of 50 who were not given therapy healed within a week. 20 people out of 50 who were given therapeutic touch healed within a week. Write a null hypothesis for this study and interpret by means of statistics. Show all work. 
2. List 3 questions from you baloney detection kit that you would pose for any physical claim. 3. A study was performed on the effect of two different concentrations of fertilizer on plant growth. Column 1 = no fert, column 2 = 1% fertilizer, column 3 = 2 % fertilizer. An analysis of the resulting data (biomass) was performed:
Identify the control. ___________________________ Write a null hypothesis for this experiment. How many replicates (trials) were performed for each experimental group? _______ What is the conclusion from this study (and explain you reasoning)? Tcrit = 4.2. Do any of these fertilizer groups have a significant effect? Show all work!! 3. A study was performed on the effect of three different concentrations of fertilizer on plant growth. Column 1 = no fert, column 2 = 1% fertilizer, column 3 = 2 % fertilizer, column 4 = 4% fertilizer. An analysis of the resulting data (biomass) was performed:
Identify the control. ___________________________ Write a null hypothesis for this experiment. How many replicates (trials) were performed for each experimental group? _______ What is the conclusion from this study (and explain you reasoning)? What further analysis, if any, might be done to locate source of variation or other useful information? Download 104.75 Kb. Share with your friends:
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