Construct and evaluate the calibration curve by plotting absorbance versus concentration. CuAbsorbance AbsorbanceAbsorbanceMean + SDstandard123(ppm)10.05210.05200.05220.0521 + 0.000120.10110.10120.10130.1012 + 0.000130.15760.15780.15770.1577 + 0.000140.21190.21200.21210.212 + 0.000150.26880.26810.26850.268466667 ± 0.003032UnknownAbsorbance Absorbance AbsorbanceMean + SDsample23Water0.16490.16480.17010.1666 + 0.003032sample 1(1:10dilution)CrAbsorbanceAbsorbance 2 Absorbance 3Mean + SDstandard1(ppm)10.04190.04250.04200.042133333 ± 0.0003210.07780.07800.07790.0779 +0.000130.10400.10430.10410.104133333 ± 0.00015340.13680.13690.13720.136966667 ± 0.00020850.16460.16470.16490.164733333 + 0.000153UnknownAbsorbanceAbsorbance 2 Absorbance 3Mean + SDsampleTap Watersample 1(1:20dilution)10.04880.04890.05010.049266667 ± 0.000723

Solution: From the given information,

Answered: Cu Absorbance Absorbance Absorbance…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter4: Eigenvalues And Eigenvectors

Section4.6: Applications And The Perron-frobenius Theorem

Problem 25EQ

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Population Genetics In the study of population genetics, an important measure of inbreeding is the proportion of homozygous genotypesthat is, instances in which the two alleles carried at a particular site on an individuals chromosomes are both the same. For population in which blood-related individual mate, them is a higher than expected frequency of homozygous individuals. Examples of such populations include endangered or rare species, selectively bred breeds, and isolated populations. in general. the frequency of homozygous children from mating of blood-related parents is greater than that for children from unrelated parents Measured over a large number of generations, the proportion of heterozygous genotypesthat is, nonhomozygous genotypeschanges by a constant factor 1 from generation to generation. The factor 1 is a number between 0 and 1. If 1=0.75, for example then the proportion of heterozygous individuals in the population decreases by 25 in each generation In this case, after 10 generations, the proportion of heterozygous individuals in the population decreases by 94.37, since 0.7510=0.0563, or 5.63. In other words, 94.37 of the population is homozygous. For specific types of matings, the proportion of heterozygous genotypes can be related to that of previous generations and is found from an equation. For mating between siblings 1 can be determined as the largest value of for which 2=12+14. This equation comes from carefully accounting for the genotypes for the present generation the 2 term in terms of those previous two generations represented by for the parents generation and by the constant term of the grandparents generation. a Find both solutions to the quadratic equation above and identify which is 1 use a horizontal span of 1 to 1 in this exercise and the following exercise. b After 5 generations, what proportion of the population will be homozygous? c After 20 generations, what proportion of the population will be homozygous?
Workers in the office like to drink coffee during work. A doctor is concerned about this situation since the too much coffee consumption may result to long-term health problems. However, studies suggests that there is no risk in drinking three cups of coffee per day, which is about 250 mg of caffeine. The doctor wants to know if the amount of caffeine consumed by the workers is within tolerable limits. He randomly selected 20 students and found that they consume an average of 270 mg of caffeine each day with a standard deviation of 48 mg. Assume that the daily amount of caffeine consumed by students follow the normal distribution.1. Which of the following sets of hypotheses should be used in this study? A. Ho: μ = 250 vs. Ha: μ > 250 B. Ho: μ ≤ 250 vs. Ha: μ > 250 C. Ho: μ = 270 vs. Ha: μ > 270 D. Ho: μ = 270 vs. Ha: μ ≠ 270 2. Which of the following is(are) TRUE? I. The appropriate test procedure to answer the objective of the study is a…
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Heteroskedasticity means that Group of answer choices Homogeneity cannot be assumed automatically for the model The conditional variance of the error term is zero The observed units have different values The variance of the error term conditional on the explanatory variables is not constant

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