In a recent survey of US adults, 50 people were asked the question: “Do you use a ride sharing app?”. Of those surveyed, 44 responded that they did use a ride sharing app. Use the “plus-four” method to find a 99.7% confidence interval for the true proportion of US adults who use a ride sharing app.Round to three decimal places, if necessary.z0.10z0.05z0.025z0.01z0.005z0.003z0.00151.2821.6451.9602.3262.5762.7482.968Hint: Remember the Empirical Rule, which says that if the distribution is unimodal and symmetric, then:Approximately 68% of the observations (roughly two-thirds) will be within one standard deviation of the mean.Approximately 95% of the observations will be within two standard deviations of the mean.Nearly all the observations will be within three standard deviations of the mean.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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In a recent survey of US adults, 50 people were asked the question: “Do you use a ride sharing app?”. Of those surveyed, 44 responded that they did use a ride sharing app.

Use the “plus-four” method to find a 99.7% confidence interval for the true proportion of US adults who use a ride sharing app.

Round to three decimal places, if necessary.

z0.10	z0.05	z0.025	z0.01	z0.005	z0.003	z0.0015
1.282	1.645	1.960	2.326	2.576	2.748	2.968

Hint: Remember the Empirical Rule, which says that if the distribution is unimodal and symmetric, then:

Approximately 68% of the observations (roughly two-thirds) will be within one standard deviation of the mean.
Approximately 95% of the observations will be within two standard deviations of the mean.
Nearly all the observations will be within three standard deviations of the mean.

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