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This study, which was planned to be a 50 year longitudinal study, was the world’s first large prospective study of the effects of smoking to establish a convincing linkage between tobacco smoking and lung cancer.

There is a sample linear regression with the quadratic term as follows:

What will the primary care pediatric nurse practitioner teach the parents of a child who has new pressure-equalizing tubes (PET) in both ears? Parents should notice improved hearing in their child. Correct PET will help by reducing the number of ear infections the child has. The child should use earplugs when showering or bathing. The tubes will most likely remain in place for 3 to 4 years.

An adolescent is diagnosed with major depression but currently does not have suicidal ideation. He is stable and and has been prescribed fluoxetine. What other treatment is important to protect against suicide risk?

Let’s assume that we want to estimate the effect of tech innovation on individual wealth in a nation. We can measure individual wealth in a nation with GDP per capita. We can measure tech innovation with the number of patents or the number of science journal publications. In addition, we want to measure the Covid-19 pandemic effect on individual wealth as well. Therefore, we construct the dataset as follows: Patent: the number of patents in a country GDPcapita : GDP per capita = GDP/population GDPgrowth: GDP growth rate SCJournal: the number of scientific journal publications HighTechExport: the share of high-tech export in GDP Unemploy: Unemployment rate Covid: 1 data comes from 2020 (during the pandemic); 0 data comes from before the COVID-19 pandemic period. Then, we conducted correlation test among variables as follows: we want to put both the patent variable and SCJournal variable as independent variables into a linear regression. However, the high correlation between patent and SCJournal variables (i.e., 0.87) can cause _______________. In this case, we cannot trust the p-value for the coefficients of independent variables in the sample linear regression; therefore, we usually drop one of the correlated independent variables in the linear regression model.   

There is a sample linear regression, as follows:

Intro Criminal Law FX. 10.24.2024.doc

The “triple bottom line” reports on three factors: profits, people, and planet.

There is a population linear regression as follows:

Sustainability is an expense item only. An organization choosing sustainability will see reduced profits.