Mistakes

Question 1

You have a five marker, and two box-plots. What do you compare?

Answer 1

• Median.
• spread
• outliers?
• skew
• general context

Question 2

Why isn’t stratifying by what you are investigation a good idea?

Answer 2

because you can artificially bias results

Question 3

if the calculated skew from a data set is positive, what does that mean about the data spread about the median?

Answer 3

data below the median is less spread than data above.

Question 4

is using names-out-of-a-hat appropriate sampling method for 650 names?

Answer 4

No. 650 name sin a box woul not mix very well and therefore would not give every name and equal chance of being selected.