Paired t-test data: vlc$vlcbefore and vlc$vlcafter t = -6.3403, df = 7, p-value

Question

Paired t-test

data: vlc$vlcbefore and vlc$vlcafter

t = -6.3403, df = 7, p-value = 0.0003888

alternative hypothesis: true difference in means is not equal to 0

95 percent confidence interval:

-6.500925 -2.969075

sample estimates:

mean of the differences

-4.735

In your own words, write your conclusion regarding the effects of the bronchodilator on VLC for the asthma patients at the 5% level of significance. Do not just write “reject H0” or “do not reject H0.” Your conclusion must say something about the effects of the bronchodilator on VLC

Explanation / Answer

Here 95 percent confidence interval:

-6.500925 -2.969075

Which doesn not involve 0.

Which means vlc$vlcbefore and vlc$vlcafter are different.

Hence bronchodilator have effect on VLC

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