Question

**The study concluded that
average PaO2 level increases during closed suction than open
suction while patient is on the ventilator so recommended
to** keep the patient connected to the ventilator while
clearing airway secretions decreases the risk of hypoxemia. If the
researchers had missed the significance of the drop in the average
PaO2 level within the open suction group what type of error would
this be?

Answer #1

The null hypothesis is

H0: there is no change in PaO2 level between open and closed suction

The alternative hypothesis

Ha: PaO2 level decreases in open sunction than in closed suction

If the reseacher has the missed the significance of the drop in the average PaO2 level , that means the researcher rejects the alternative hypothesis and accepts the null hypothesis

We know that type II error is the error of accepting the wrong null hypothesis

When the null hypotheis is false , that is there is significant decraese in PaO2 level in open sunction , but on the basis of the test the researcher concludes that there is no significant change in PaO2 level , the researcher commits type II error .

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