d) Can we conclude that having a bachelor's degree increases one's income?YesO No 1.16 Income and education in US counties: The scatterplot below shows the relationship between percapita income (in thousands of dollars) and percent of population with a bachelor's degree in 3,143counties in the US in 2010.Per capita income (in $1,000)60-40201030Percent with Bachelor's degreea) What is the explanatory variable?Percent with a Bachelor's DegreePer Capita Income (in $1000s)b) What is the response variable?Per Capita Income (in $1000s)Percent with a Bachelor's Degree50c) Describe the relationship between the variables.no relationshipweak negativestrong negativeweak positivestrong positive70

The scatter plot of the data is given.

Answered: 1.16 Income and education in US…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Paragraph Styles Editing Adobe Acrobat 1. According to an article in Newsweek, the natural ratio of girls to boys is 100:105. In China, the birth ratio is 100:114 (46.7% girls). Suppose you don't believe the reported figures of the percent of girls born in China. You conduct a study. In this study, you count the number of girls and boys born in 150 randomly chosen recent births. There are 64 girls and 86 boys born of the 150. Based on your study, do you believe that the percent of girls born in China is 46.7? Conduct a hypothesis test at the 5% level. a. State the distribution to use for the test. (Round your answers to four decimal places.) b. Construct a 95% confidence interval for the true proportion. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Round your answers to four decimal places.)
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Students on a campus of a college in Wisconsin were asked about their age. The results of this survey are recorded in the table below. Student ages Frequency 17-26 11 27-36 24 37-46 49 57 and over 41 (a) What is the relative frequency for the age group 17-26? (Write your answer IN PERCENTAGE FORM. Round to at least 1 decimal place. Do not include the % symbol in your answer.) Answer: % (b) What is the relative frequency for the the age group 37-46? (Write your answer IN PERCENTAGE FORM. Round to at least 1 decimal place. Do not include the % symbol in your answer.)) Answer: %
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1.16 Income and education in US counties: The scatterplot below shows the relationship between per capita income (in thousands of dollars) and percent of population with a bachelor's degree in 3,143 counties in the US in 2010. come (in $1,000) 60 40-