Construct and interpret 95% confidence interval for the difference in oxygen levels before and after the drug use. Based on the interval, do you believe FDA will approve the drug?
Construct and interpret 95% confidence interval for the difference in oxygen levels before and after the drug use. Based on the interval, do you believe FDA will approve the drug?
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
Transcribed Image Text:FDA is testing a new drug for its effectiveness in improving lung functions of Covid patients. The
drug is considered "effective" and hence approved if it increases the blood oxygen level by an average
of 5 points. FDA selected a random sample of 7 individuals and recorded their blood oxygen level before
and after taking the drug. The results are in the following table.
Person
Mike Mina Sophia Ibrahim Silvia Carl George
Oxygen level before drug
86
85
94
85
91
88
92
Oxygen level after drug
95
92
97
95
98
98
97
Construct and interpret 95% confidence interval for the difference in oxygen levels before and after the
drug use. Based on the interval, do you believe FDA will approve the drug?
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