MDM4U

Topics: Higher education, High school, Secondary education Pages: 5 (1583 words) Published: January 21, 2014
Table of Contents:
Introduction………………………………………………………………………………………………….1 Hypothesis …………………………………………………………………………………………………..1 Education Attainment…………………………………………………………………………………..2 Education and Gender………………………………………………………………………………….3 Mean Income for People 15 and Over-Graphs…………………………………………..4-6 Mean Income for People 15 and Over-Analysis……………………………………………7 Mean Income and Education Attainment-Graphs……………………………………8-11 Mean Income and Education Attainment-Analysis…………………………………12-13 Salary Brackets by Education Attainment-Graphs………………………………….14-15 References……………………………………………………………………………………………….16

Introduction:
During the early 20th century to the late 20th century, the USA experienced a large increase in education attainment. By the end of the 20th century, the labor force had attained on average 13 years of schooling compared to the 8 years of those working in 1940. Also the Per Capita income almost doubled from $14,810 in 1967 to $28,181 in 2012. Researchers in the US have been trying to comprehend if the increase in incomes that they today, was a result of education attainment boom in the early 20th century, or whether other factors contributed to the rise in both education and income. Hypothesis:

There’s a strong correlation between someone’s education level and their personal income. The higher the education level, the higher the income.

Education Attainment:
In general, the US is like many other industrialized countries with most of the population have completed secondary education and post-secondary graduates are more than secondary dropouts. Americans are staying in school far more than ever before. The chart below shows the increase in length of schooling that people 25 and over in the US.

Throughout the last half of the 20th century, more and more Americans were not only completing secondary school but also enrolling in post-secondary institutions. From 1940 to 2012 the average number of people with at least 1 year of post-secondary education increased by 1.5 million. A line of best fit that represents this trend of people with post-secondary education is:

Y is in thousands and x is years after 1940.
During that same timeframe, the percent of the population that had completed secondary education grew dramatically from 24.5% to 87.6% by 2012. Critics argue the increase in education attainment in the US was attributed to the federal government for investing in education in the 50’s and 60’s. In 1965 the government implemented the Elementary and Secondary Act. This act began the federal government to pump money into local school boards across the country. Education and Gender:

For the past 70 years there has been a gap of education attainment between males and females. However the gender has been lacking has varied over the years.

The graph above shows during the last half of the 20th century the percent of males that have graduated high school is proportional to the percent of females that have graduated high school.

Mean Income for People 15 and Over -Analysis
The last three graphs are basic single variable graphs with the mean income for males, females and both sexes for each year from 1947-2012. The year numbers are in ascending numerical order from left to right. The corresponding mean incomes are placed on the y-axis in ascending order from $0. The first income graph (both sexes combined) demonstrates continuous data because the income could’ve been any value of money. The data for this graph is from this source: (http://www.census.gov/hhes/www/income/data/historical/people/2012/P04_2012.xls). The second income graph (Males Only) again demonstrates continuous data because the income could’ve been any value of money. The data for this graph is from this source: (http://www.census.gov/hhes/www/income/data/historical/people/2012/P03_2012.xls). The third income graph (Females Only) like the other two also demonstrates continuous data because the income could’ve...
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