6- A chi-square test of the relationship between personal perception of emotional health and martial status led to rejection of the null bypothesis, indicating that there is a relationship between these two variables. One conclusion that can be drawn is: Please select one; a) the more emotionally healthy someone is, the more likely they are to be married b) there are likely to be confounding variables related to both emotional bealth and martial status c) better emotional health leads to marriage d) marriage leads to better emotinal health

6- A chi-square test of the relationship between personal perception of emotional health and martial status led to rejection of the null bypothesis, indicating that there is a relationship between these two variables. One conclusion that can be drawn is: Please select one; a) the more emotionally healthy someone is, the more likely they are to be married b) there are likely to be confounding variables related to both emotional bealth and martial status c) better emotional health leads to marriage d) marriage leads to better emotinal health

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Suppose you just read a careful statistical study of the effect of improvedhealth of children on their test scores at school. Using data from a project in aWest African district, in 2000, the study concluded that students who receivedmultivitamin supplements performed substantially better at school. Use theconcept of external validity to determine if these results are likely to apply toIndia in 2000, the United Kingdom in 2000, and West Africa in 2015.
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Provide an analysis of the evidence emerging from tables 1 and 2
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Which of the following measures of central tendency can have more than one value in a single sample? Mode Median Variance Mean
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The table below shows data on a subsample of participants in the 7th examination of the Framingham Offspring Study. Characteristic n Sample Population Standard Мean Deviation Systolic Blood 10 121.2 11.1 Pressure Diastolic Blood 10 71.3 7.2 Pressure Total Serum 10 202.3 37.7 Cholesterol Weight 10 176.0 33.0 Height 10 67.175 4.205 Body Mass 10 27.26 3.10 Index Which of the following is the 95% confidence level for Systolic Blood Pressure 114.32, 128.08 120.98, 121.42 121.16, 121.24 112.16, 130.24
None
E. coli cells were infected with two strains of T4 virus. One strain is minute (m), rapid lysis (r), and turbid (t); the other is wild type for all three markers. The lytic products of this infection were plated and classified. The resulting 10,342 plaques were distributed among eight genotypes as follows:a. What are the linkage distances between m and r, between r and t, and between m and t. b. Determine the linkage order for the three genes. c. What is the coefficient of coincidence (see Chapter 4) in this cross? What does it signify?
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We have a random sample of workers from a large firm. In 2017, the firm ran a training program. Some workers did the training program, others did not. The firm now wants to assess the effect of the training on earnings. We use the following model to estimate the effect of a training program on annual earnings in 2018: ln⁡(earn2018)=β0+β1train+β2ln⁡(earn2016)+β3educ+β4exper+u where earn2018 = individual total annual earnings in 2018 in dollars train = a dummy variable that takes the value 1 if the individual worker did the training in 2017 and 0 otherwise earn2016 = individual total annual earnings in 2016 in dollars educ = the individual's years of education exper = the individual's years of experience We find: ln⁡(earn2018)^= 11.672 + 0.041train + 0.821ln⁡(earn2016) + 0.037educ + 0.012exper (5.864) (0.019) (0.258) (0.013) (0.007) n=1278, R2= 0.048 Which of the following is the correct interpretation of the…