Maximal static inspiratory pressure (PImax) is an index of respiratory muscle strength. The following data show the

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Maximal static inspiratory pressure (PImax) is an index of respiratory muscle strength. The following data show the measure of PImax (cm H2O) for 15 cystic fibrosis patients.
105 135 80 115 100 85 115 90 70 70 95 115 40 105 45 95

(a) Find the lower and upper quartiles, median, and interquartile range. Check for any outliers and interpret.
(b) Construct a box plot and interpret.
(c) Are there any outliers?

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Mathematical Statistics With Applications In R

ISBN: 9780124171138

2nd Edition

Authors: Chris P. Tsokos, K.M. Ramachandran

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