е. State the confidence interval. Round values to the nearest tenth. Answer Sus Work/Explanation f. Fill in the blanks below to state your conclusion: We can conclude with confidence that Americans between 50-64 years old consume a mean amount of caffeine that is between and on a daily basis. This means that the probability that is
е. State the confidence interval. Round values to the nearest tenth. Answer Sus Work/Explanation f. Fill in the blanks below to state your conclusion: We can conclude with confidence that Americans between 50-64 years old consume a mean amount of caffeine that is between and on a daily basis. This means that the probability that is
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:QUEST
11
Complete the following z-score problem.
According to an article published in 2014, Americans between 50 and 64 years old consume more caffeine than any other age group. Harold surveys a SRS of
2,000 Americans in this age group and finds them to consume a mean of 220 mg of caffeine per day. Find a 98% confidence interval for the mean amount of
caffeine consumed by Americans between the ages of 50 and 64. Assume that o = 90 mg.
а.
State the point-estimate.
Work/Explanation
Answer
b.
Determine the standard error to the nearest hundredth.
Work/Explanation
Answer
C.
Identify the critical value.
Work/Explanation
Answer
d.
Determine the margin of error to the nearest tenth.
Work/Explanation
Answer
Transcribed Image Text:е.
State the confidence interval. Round values to the nearest tenth.
Answer
Work/Explanation
f.
Fill in the blanks below to state your conclusion:
We can conclude with
confidence that Americans
between 50-64 years old consume a mean amount of caffeine that is between
and
on a daily basis. This
means that the probability that
is
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