Examlex
Which of the following statements are true of P(A-a) O2?
I.Increased P(A-a) O2 indicates increased physiological shunting.
II.Normal P(A-a) O2 is approximately 7 to 14 mm Hg during breathing of room air.
III.P(A-a) O2 is as high as 50 to 60 mm Hg during the breathing of 100% oxygen.
IV.The variability of P(A-a) O2 with FIO2 limits its usefulness as a shunt indicator when FIO2 is changed.
Two Tailed Test
A statistical test that evaluates the possibility of a relationship in both directions, allowing for the rejection of a null hypothesis for extreme values at either end of the probability distribution.
Test-statistic
A value calculated from sample data during a hypothesis test, used to determine whether to reject the null hypothesis.
Right Tailed Test
A statistical hypothesis test where the area of interest is in the right tail of the probability distribution.
Test-statistic
A test statistic is a calculated value from sample data that is used in statistical hypothesis testing to determine whether to reject the null hypothesis.
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