An article investigated the consumption of caffeine among women. A sample of 40 women were asked to monitor their caffeine intake over the course of one day. The mean amount of caffeine consumed in the sample of women was 204.418 mg with a standard deviation of 245.236 mg. In the article, researchers would like to include a 98% confidence interval. The values below are t critical point corresponding to 90%, 95%, 98%, and 99% confidence. Which critical point corresponds to 98% confidence? 1.6852.7082.0232.426With 98% confidence, we estimate the mean amount of caffeine consumed by women is between mg and mg. (Round the limits of your interval to 4 decimal places.)If the level of confidence were changed to 95%, what effect would this have on the width of the calculated confidence interval?the interval would narrowthe interval would widenthere would be no effect on the interval

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Description: An article investigated the consumption of caffeine among women. A sample of 40 women were asked to monitor their caffeine intake over the course of one day. The mean amount of caffeine consumed in the sample of women was 204.418 mg with a standard d

From the given information, the sample mean is 204.418, standard deviation is 245.236 and sample…

Answered: An article investigated the consumption…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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An article investigated the consumption of caffeine among women. A sample of 40 women were asked to monitor their caffeine intake over the course of one day. The mean amount of caffeine consumed in the sample of women was 204.418 mg with a standard deviation of 245.236 mg. In the article, researchers would like to include a 98% confidence interval.

The values below are t critical point corresponding to 90%, 95%, 98%, and 99% confidence. Which critical point corresponds to 98% confidence?
- 1.685
- 2.708
- 2.023
- 2.426
With 98% confidence, we estimate the mean amount of caffeine consumed by women is between mg and mg. (Round the limits of your interval to 4 decimal places.)
If the level of confidence were changed to 95%, what effect would this have on the width of the calculated confidence interval?
- the interval would narrow
- the interval would widen
- there would be no effect on the interval

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