Consider the data from Exercise 6 3 11 If the sample size is small, as it is in this case, then in order for a confidence interval based on Student 's t distribution to be valid, the data must come from a normally distributed population Is it reasonable to think that difference in HBE level is norm...

A histogram and normal probability ...

Consider the data from Exercise 6.3.11. If the sample size is small, as it is in this

Question:

Consider the data from Exercise 6.3.11. If the sample size is small, as it is in this case, then in order for a confidence interval based on Student's t to be valid, the data must come from a normally distributed population. Is it reasonable to think that difference in HBE level is normally distributed? How do you know?
Data From Exercise 6.3.11

Distribution
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