Long-distance runners have contended that moderate exposure to ozone increases lung capacity. To investigate this possibility, a researcher exposed seven rats to ozone at the rate of two parts per million for a period of 30 days. The lung capacity of the rats was determined at the beginning of the study and again after the 30 days of ozone exposure. The lung capacities (in mL) are given in the table below. Rat Before exposure After exposure 1 2 3 4 5 7 8.7 7.9 8.4 9.1 8.9 8.2 7.5 9.4 9.8 10.3 8.8 12.2 9.9 9.3 Based on the p-value, determine if the data support the claim that ozone exposure increases lung capacity. Use a = 0.05.

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Long-distance runners have contended that moderate exposure to ozone increases lung
capacity. To investigate this possibility, a researcher exposed seven rats to ozone at the
rate of two parts per million for a period of 30 days. The lung capacity of the rats was
determined at the beginning of the study and again after the 30 days of ozone exposure.
The lung capacities (in mL) are given in the table below.
Rat
Before exposure
After exposure
1
2
3
4
5
7
8.7
7.9
8.4
9.1
8.9
8.2
7.5
9.4
9.8
10.3
8.8
12.2
9.9
9.3
Based on the p-value, determine if the data support the claim that ozone exposure
increases lung capacity. Use a = 0.05.
Transcribed Image Text:Long-distance runners have contended that moderate exposure to ozone increases lung capacity. To investigate this possibility, a researcher exposed seven rats to ozone at the rate of two parts per million for a period of 30 days. The lung capacity of the rats was determined at the beginning of the study and again after the 30 days of ozone exposure. The lung capacities (in mL) are given in the table below. Rat Before exposure After exposure 1 2 3 4 5 7 8.7 7.9 8.4 9.1 8.9 8.2 7.5 9.4 9.8 10.3 8.8 12.2 9.9 9.3 Based on the p-value, determine if the data support the claim that ozone exposure increases lung capacity. Use a = 0.05.
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