While seafood consumption has health benefits as part of a well-diversified diet, the quality of the fish reaching most people's tattes may be questionale Foinstance, fish and other seafood could be contaminated with mercury, lead, industrial chemicals, and pesticides Frequent consumption ef contaminated lihcould actually pose health risks. The Save the Sea NGO is conducting a comparative study on the prevalence of contamination in fish corting from the Aegancoast and from the Mediterranean coast of Turkey. Contaminated fish is fish that contain metal or chemical amounts above the tated safity imits The NGcollects 118 fish from the Aegian and 110 fish from the Mediterranean. 8 of the Aegian sourced and 15 of the Mediterranean sourced fish are contaminated.a. Considering the real-life problem, determine the point estimate of the unknown quantity that needs to be estimated.(Round to three decimal places.)b. Determine the critical value needed to compute a 97% confidence interval.(Round to two decimal places.)c. Compute the confidence interval the NGO team would be interested in computing, using the confidence level in b.Lower boundary-Upper boundary(Round to two decimal places.)

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Answered: While seafood consumption has health…

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 technology underlying hip replacements has changed as these operations havebecome more popular (over 250,000 in the United States in 2008). Starting in 2003,highly durable ceramic hips were marketed. Unfortunately, for too many patients theincreased durability has been counterbalanced by an increased incidence ofsqueaking. The May 11, 2008, issue of the New York Times reported that in one studyof 143 individuals who received ceramic hips between 2003 and 2005, 10 of the hipsdeveloped squeaking.a. Calculate a lower confidence bound at the 95% confidence level for the trueproportion of such hips that develop squeaking.b. Interpret the 95% confidence level used in (a).
A consulting group recently conducted a global survey of product teams with the goal of better understanding the dynamics of product team performance and uncovering the practices that make these teams successful. One of the survey findings was that 32% of organizations have a coherent business strategy that they stick to and effectively communicate. Suppose another study is conducted to check the validity of this result, with the goal of proving that the percentage is less than 32%. State the null and research hypotheses. Identify the null and alternative hypotheses. A. H0: π≤0.32; H1: π>0.32 B. H0: π≥0.32; H1: π<0.32 C. H0: π=0.32; H1: π≠0.32 D. H0: π≠0.32; H1: π=0.
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