After ingesting 15 mL of 95% alcohol, the blood alcohol level of a 75 kg adult male rises rapidly to a maximum level then gradually decreases over time. Measurements of the subject's blood alcohol level at time t (in minutes) since the maximum blood alcohol level was observed gave the following results: Time t (in minutes) Blood alcohol level, B (in mg/L) 10 25 60 70 90 150 160 130 70 60 40 20 ) Using least squares regression, determine an equation of the form B=B,ekt that best fits the relationship shown. You do not need to graph the data. (Note any transformations you have applied to your data: x, y→, round the values that appear in your final equation to three significant figuro

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After ingesting 15 mL of 95% alcohol, the blood alcohol level of a 75 kg adult male rises rapidly to a
maximum level then gradually decreases over time. Measurements of the subject's blood alcohol
level at time t (in minutes) since the maximum blood alcohol level was observed gave the following
results:
Time t (in minutes)
Blood alcohol level, B
(in mg/L)
10
25
60
70
90
150
160
130
70
60
40
20
a) Using least squares regression, determine an equation of the form B= Be-kt that best fits the
relationship shown. You do not need to graph the data. (Note any transformations you have
applied to your data: x→, y→, round the values that appear in your final equation to three
significant figures, and use the correct variable names...not x and y.)|
b) Using your equation from part a), estimate the time t at which the subject's blood alcohol level will
be 90 mg/L? Round your answer to the nearest minute.
Transcribed Image Text:After ingesting 15 mL of 95% alcohol, the blood alcohol level of a 75 kg adult male rises rapidly to a maximum level then gradually decreases over time. Measurements of the subject's blood alcohol level at time t (in minutes) since the maximum blood alcohol level was observed gave the following results: Time t (in minutes) Blood alcohol level, B (in mg/L) 10 25 60 70 90 150 160 130 70 60 40 20 a) Using least squares regression, determine an equation of the form B= Be-kt that best fits the relationship shown. You do not need to graph the data. (Note any transformations you have applied to your data: x→, y→, round the values that appear in your final equation to three significant figures, and use the correct variable names...not x and y.)| b) Using your equation from part a), estimate the time t at which the subject's blood alcohol level will be 90 mg/L? Round your answer to the nearest minute.
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