Amphibian populations are in decline worldwide due to the increasing prevalence of ranavirus infections. Herpetologists (those that study amphibiansand reptiles) are especially concerned with how ranavirus infections may be affecting Ozark and eastern hellbender populations.Suppose both populations of hellbenders are known to have ranavirus infections at a rate of 25%. Suppose a random sample of size 226 is taken ofthe eastern hellbender population and a random sample of size 339 is taken of the Ozark hellbender population. Every hellbender in each sample istested for ranavirus, and the sample proportions for each of the two samples are calculated.Which of the two sample proportions is more likely to exceed 22% ?O a. They are equally likely to exceed 22%.0O b. The sample proportion of ranavirus infections for the Ozark hellbenders. 0O c. The sample proportion of ranavirus infections for the eastern hellbenders. 0O d. There is not enough information present to answer this question. 0

Answered: Image /qna-images/answer/b18c79eb-98dc-4a36-a371-53d2d6e9fe01.jpg

Answered: Amphibian populations are in decline…

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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The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and Wages (QCEW) and reports a variety of information on each county in America. In the third quarter of 2016, the QCEW reported the total taxable earnings, in millions, of all wage earners in all 3222 counties in America. Suppose that James is an economist who collects a simple random sample of the total taxable earnings of workers in 52 American counties during the third quarter of 2016. According to the QCEW, the true population mean and standard deviation of taxable earnings, in millions of dollars, by county are μ=28.29 and σ=33.493, respectively. Let ?X be the total taxable earnings, in millions, of all wage earners in a county. The mean total taxable earnings of all wage earners in a county across all the counties in James' sample is x¯. Use the central limit theorem (CLT) to determine the probability ? that the mean taxable wages in James' sample of 52 counties will be less than $29…
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