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Bài viết của Nguyễn Mỹ Hương

Labor Productivity and Economic Growth

Sustained long-term economic growth comes from increases in worker productivity, which essentially means how well we do things. In other words, how efficient is your nation with its time and workers? Labor productivity is the value that each employed person ...

Tác giả: Nguyễn Mỹ Hương viết 15:55 ngày 25/05/2018 chỉnh sửa

Data, Sampling, and Variation in Data and Sampling

Data may come from a population or from a sample. Small letters like x or y generally are used to represent data values. Most data can be put into the following categories: Qualitative Quantitative Qualitative data are the result of categorizing ...

Tác giả: Nguyễn Mỹ Hương viết 15:55 ngày 25/05/2018 chỉnh sửa

Terminology

Probability is a measure that is associated with how certain we are of outcomes of a particular experiment or activity. An experiment is a planned operation carried out under controlled conditions. If the result is not predetermined, then the experiment is ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

Vectors

An airplane is flying at an airspeed of 200 miles per hour headed on a SE bearing of 140°. A north wind (from north to south) is blowing at 16.2 miles per hour, as shown in [link]. What are the ground speed and actual bearing of the plane? Ground speed ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

Confronting Objections to the Economic Approach

It is one thing to understand the economic approach to decision-making and another thing to feel comfortable applying it. The sources of discomfort typically fall into two categories: that people do not act in the way that fits the economic way of thinking, ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

Hypothesis Testing of a Single Mean and Single Proportion

Class Time: Names: Student Learning Outcomes The student will select the appropriate distributions to use in each case. The student will conduct hypothesis tests and interpret the results. Television Survey In a ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

The Hyperbola

What do paths of comets, supersonic booms, ancient Grecian pillars, and natural draft cooling towers have in common? They can all be modeled by the same type of conic . For instance, when something moves faster than the speed of sound, a shock wave in the form ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

Indexing and Its Limitations

When a price, wage, or interest rate is adjusted automatically with inflation, it is said to be indexed . An indexed payment increases according to the index number that measures inflation. A wide array of indexing arrangements is observed in private markets ...

Tác giả: Nguyễn Mỹ Hương viết 15:54 ngày 25/05/2018 chỉnh sửa

Improving Countries’ Standards of Living

Jobs are created in economies that grow. Where does economic growth come from? According to most economists who believe in the growth consensus , economic growth (as discussed in Economic Growth) is built on a foundation of productivity improvements. In turn, ...

Tác giả: Nguyễn Mỹ Hương viết 15:53 ngày 25/05/2018 chỉnh sửa

Patterns of Unemployment

Let’s look at how unemployment rates have changed over time and how various groups of people are affected by unemployment differently. [link] shows the historical pattern of U.S. unemployment since 1948. The U.S. Unemployment ...

Tác giả: Nguyễn Mỹ Hương viết 15:53 ngày 25/05/2018 chỉnh sửa