An issue of USA Today reported the average fees charged to use another bank's ATM for 2000-2005.YearATM Fee2000$2.552001$2.842002$2.672003$2.812004$3.002005$2.85(a) Use these data to find a least squares line of ATM fees as a function of years since 2000. (Round your coefficients to threedecimal places.)y =(b) Estimate the average ATM fee for 2009. (Round your answer to the nearest cent.)

Answered: An issue of USA Today reported the…

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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Size Energy Expenditure 250 1153 750 1256 1250 1696 1750 1830 2250 2016 2750 2150 3250 2217 3750 2534 The percentage of variation in average annual energy expenditures that is explained by the least-squares regression line is
I need help with this math problrm in the photo!
Consider the following. x 1 2 3 4 y 4 6 9 13 (a) Find an equation of the least-squares line for the data. (Give each answer correct to 3 decimal places.)y = x +(b) Draw a scatter diagram for the data and graph the least-squares line.
The following table gives estimates of the percent of a certain country's population below the poverty level for 1998–2008. Year Percent 1998 12.8 2000 11.2 2002 12.1 2004 12.7 2006 12.9 2008 13.2 Find the least squares line that relates years to percent below the poverty level. (Let x = 0 represent the year 1998. Enter a mathematical expression.
Interpreting technology: A biologist computed a least-squares regression line for predicting the brain weight in grams of a bird from its body weight in grams. The results are presented in the following Excel output. Coefficients Intercept 3.68952298 Body Weight 0.07800925 Part: 0 / 2 Part 1 of 2 Write the equation of the least-squares regression line. Use the full accuracy shown in the Excel output (do not round your answers). Regression line equation: y = X
The graph to the right gives the percent of persons 25 years and over who have completed four or more years of college. Percentage of College Graduates 40- 35- a. Use the method of least squares to obtain the straight line that best fits these data. b. Estimate the percent for the year 2008. c. If the trend continues, when will the percent reach 32? 30- 27.9 29.6 ll 23- 20 19.3 21.1 233 25.6 15- 10- 5- 1985 1990 1995 2000 2005 2010 (a) Use the method of least squares to obtain the straight line that best fits this data. Make the numbers more manageable by counting years beginning with 1985. The least-squares line is y =x+ (Type an integer or decimal rounded to the nearest hundredth as needed.)
Data for motor vehicle production in a country for the years 1997 to 2004 are given in the table. Year 1997 1998 1999 2000 2001 2002 2003 2004 Thousands 1,578 1,671 1,805 2,009 2,391 3,219 4,415 5,092 (A) Find the least squares line for the data, using x = 0 for 1990. y = (Use integers or decimals for any numbers in the expression. Do not round until the final answer. Then round to the nearest tenth as needed.)
Researchers are investigating how the amount of monthly rainfall, measured in centimeters (cm), affects the monthly growth, in cm, of a certain plant. From a sample of data, the researchers created a least- squares regression line. Computer output is shown in the following table. Variable DF Estimate SE T Intercept 1 0.75 0.350 2.14 Rainfall 1 0.15 0.025 6.00 Which of the following statements is an interpretation of the value 0.75 shown in the table? A Monthly growth is expected to increase by 0.75 cm when rainfall increases by 1 cm. Rainfall is expected to increase by 0.75 cm when monthly growth increases by 1 cm. For a month with 0 cm of rainfall, the monthly growth is expected to be approximately 0.75 cm. For a plant with 0 cm of monthly growth, the month had an expected rainfall of approximately 0.75 cm. E Approximately 75% of the variability in monthly growth is due to its linear relationship with rainfall.
Percentages of public school students in fourth grade in 1996 and in eighth grade in 2000 who were at or above the proficient level in mathematics are given for eight western states. Find the equation of the least-squares line that summarizes the relationship between x = 1996 fourth-grade math proficiency percentage and y = 2000 eighth-grade math proficiency percentage. (Give the numerical values to four decimal places.) |4th grade 8th grade (1996) State (2000) Arizona 15 21 California 11 18 Hawaii 16 16 Montana 22 37 New Mexico 13 13 Oregon 21 32 Utah 23 26 Wyoming 19 25 n USE SALT ŷ =

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