Questions: 1. What was the hypothesis in this experiment? 2. What was the independent variable? 3. What was the dependent variable? 4. What was the control in this experiment? 5. How many times was repeated? 6. Which antibiotic(s) was/were more effective to kill S. aureus? 7. Which antibiotic(s) was/were more effective to kill MRSA? 8. Which antibiotic(s) was/were less effective to kill S. aureus? 9. Which antibiotic(s) was/were less effective to kill MRSA? 10. Do you think that results support the initial hypothesis? Why?
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Read this experiment carefully. Answer the following questions: 1. What was your working hypothesis for this experiment? 2. Identify the independent variable 3. Identify the dependent variable 4. List at least 3 controlled variables 5. Write a prediction using if and then statement (bonus 2 points)
Sri K.
Scientific Investigation Assignment 1: Identify dependent and independent variables in the following experiment: One hundred volunteers were injected with the experimental COVID-19 vaccine on the day when they were exposed to the virus. One hundred different volunteers were injected with the placebo on the day they were exposed to the virus. Three weeks later, investigators test both groups for COVID-19 antibodies. Dependent variable is . Independent variable is .
Jennifer H.
Which of the following most correctly defines the term hypothesis? A statement regarding what one believes will happen during an experiment A testable statement regarding the variables in an experiment A guess as to what will happen during an experiment A prediction about what will happen during an experiment When designing an experiment, why is it important to test large numbers of subjects in each group? Each subject may exhibit some individual variability as to its response to the treatment Small numbers of test subjects may not provide adequate statistical confidence in the results Larger groups allow the researcher to "average out" the differences and determine a typical response All of the above statements are correct
Madhur L.
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