Researchers at the Medical College of Wisconsin studied 2,121 children between the ages of 1 and 4. For
each child in the study, a measure of iron deficiency and the length of time the child was bottle-fed were
recorded. The resulting data were used to learn about whether there was a relationship between iron
deficiency and the length of time a child is bottle-fed.
Answer the four key questions.
Q, Question Type: Estimation or hypothesis testing?
estimation
hypothesis testing
S, Study Type: Sample data or experiment data?
sample data
experiment data
T, Type of Data: One variable or two? Categorical or numerical?
one categorical variable
one numerical variable
two categorical variables
two numerical variables
N, Number of Samples or Treatments: How many samples or treatments?
one sample
one treatment
two samples
two treatments
Guide On Rating System
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Q: Estimation or hypothesis testing?
A: Hypothesis testing
S: Study Type: Sample data or experiment data?
A: Sample data
T: Type of Data: One variable or two? Categorical or numerical?
A: Two numerical variables
N: Number of Samples or Treatments: How many samples or treatments?
A: One sample
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