ne article describes a study of 55 young adults with pierced tongues. The researchers found receding gums, which can lead to tooth loss, in 24 of the participants.(a) Construct a 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums. (Use Table 3 in Appendix A. Give the answer to three decimal places.) 2)The formula used to calculate a confidence interval for the mean of a normal population when n is small is the following.x ± (t critical value) What is the appropriate t critical value for each of the following confidence levels and sample sizes? (Round your answers to two decimal places.) 90% confidence, n = 11

(a)given that,possible chances (x)=24size(n)=55success rate ( p )= x/n = 0.4364point of estimate =…

Answered: article describes a study of 55 young…

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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ne article describes a study of 55 young adults with pierced tongues. The researchers found receding gums, which can lead to tooth loss, in 24 of the participants.

(a) Construct a 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums. (Use Table 3 in Appendix A. Give the answer to three decimal places.)

The formula used to calculate a confidence interval for the mean of a normal population when n is small is the following.

x ± (t critical value)

What is the appropriate t critical value for each of the following confidence levels and sample sizes? (Round your answers to two decimal places.)

90% confidence, n = 11

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