1.60 Potassium from a supplement. Refer to Exercise 1.31 (page 24) where you examined the potassium absorption of a group of 29 adults who ate a controlled diet that included 40 mEq of potassium from a supplement for five days.
KSUP40
(a) Compute the standard deviation for these data.
(b) Compute the quartiles for these data.
(c) Give the five-number summary and explain the meaning of each of the five numbers.
(d) Which numerical summaries do you prefer for describing the distribution, the mean, and the standard deviation of the five-number summary? Explain your answer. (You may include a graphical summary as part of your explanation.)