An experiment has been conducted to investigate the effects of carbon monoxide in the breathing capability of human. The claim was breathing frequency is higher in the presence of CO. The data below shows the result of the experiment. Assume that breathing frequency is approximately normal. a.) At 0.05 level, what is the critical region? b.) What is the t-value/z-score

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 An experiment has been conducted to investigate the effects of carbon monoxide in the breathing capability of human. The claim was breathing frequency is higher in the presence of CO. The data below shows the result of the experiment. Assume that breathing frequency is approximately normal.

a.) At 0.05 level, what is the critical region?

b.) What is the t-value/z-score?


Breathing Frequency
Subject
(Breaths taken per minute)
With CO
Without CO
1
30
30
45
40
26
25
4
25
23
34
30
51
49
7
46
41
8
32
35
9.
30
28
Transcribed Image Text:Breathing Frequency Subject (Breaths taken per minute) With CO Without CO 1 30 30 45 40 26 25 4 25 23 34 30 51 49 7 46 41 8 32 35 9. 30 28
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