What is the observed value of the test statistic?What is the p value?Need help with also what would be the lower bound and upper bounds? **Pediatric Research**Pediatric researchers sampled 680 children under age 5 and found that 68% of them had previously contracted chicken pox. Can we conclude on the basis of these that the percent of all children under age 5 that have contracted chicken pox is different than 62%? Assume that the researcher has set the level of significance to be 3.4%.

The sample of children, The sample proportion of children who had previously contracted chicken pox is 68% (i.e. ).The hypothesized population proportion is 62% (i.e. ).The level of significance is 3.4% (i.e. ).The null and alternative hypotheses are:The test statistic is computed as follows:Hence, the test statistic is .P-value:- if is positiveThe p-value is computed using the R software. The R code and the results are given below:1> 2*pnorm(q=3.22343,lower.tail=FALSE) 2[1] 0.001266653Thus, the p-value is .Conclusion:-Here the . So, reject . Therefore, there is significant evidence to conclude that all children under age 5 who have contracted chickenpox are different from 62%.The critical value is computed using the R software. The R code and the results are given below:1> qnorm(p=0.034/2,lower.tail=FALSE) 2[1] 2.120072Thus, the critical z-value is .The upper bound is computed as follows:Hence, the upper bound is .The lower bound is computed as follows:Hence, the lower bound is .Note:- The lower bound and the upper bound are computed based on the level of significance .The test statistic, .The p-value is .Conclusion:-Reject . Therefore, there is significant evidence to conclude that all children under age 5 who have contracted chickenpox are different from 62%.The upper bound is and the lower bound is .

Math

Statistics

Pediatric researches sampled 680 children under age 5 and found that 68% of them of had previously contracted chicken pox. Can we conclude on the basis of these that that the percent of all children under age 5 that have contracted chicken pox is different than 62% ? Assume that the researcher has set the level of significance to be 3.4%.

Pediatric researches sampled 680 children under age 5 and found that 68% of them of had previously contracted chicken pox. Can we conclude on the basis of these that that the percent of all children under age 5 that have contracted chicken pox is different than 62% ? Assume that the researcher has set the level of significance to be 3.4%.

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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