**Question 10**The balance $ B $ in an account that pays $5 interest for $ t $ years is shown in the table.| Time, $ t $ | 0 | 1 | 2 | 3 | 4 | 5 ||---------------|----|----|----|----|----|----|| Balance, $ B $ | 100 | 105 | 110 | 115 | 120 | 125 |**Part A:** Make a scatter plot and determine which type of model best fits the data.**Part B:** Find the regression equation.**Part C:** Use the equation from Part B to determine the balance after 2.5 years.**Part D:** Does this answer make sense? Explain.---*Instructions for toolbar:*For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).*Formatting toolbar:*- **B** (Bold)- **I** (Italicize)- **U** (Underline)- **Paragraph settings** - Font options (e.g., Arial, 10pt)*Save instructions:*Click "Save and Submit" to save and submit your answers. Click "Save All Answers" to save all responses.

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Answered: arch P QUESTION 10 The balance B in an…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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KidsFeet Regression Line y-Intercept The KidsFeet dataframe contains data collected on 39 fourth grade students in Ann Arbor, MI, in October 1997. Two of the measurements taken on the children were the length in centimeters, (length), and width in centimeters, (width), of their longest foot. This data could be used to answer the following Research Question: How is the width of a fourth-grade student's foot related to the length? Which of the following is the y-intercept of the regression line? ## ## Simple Linear Regression## ## Correlation coefficient r = 0.6411 ## ## Equation of Regression Line:## ## length = 9.817 + 1.658 * width ## ## Residual Standard Error: s = 1.025 ## R^2 (unadjusted): R^2 = 0.411 ( ) 1.0248 ( ) 1.6576 ( ) 22.8153 ( ) 0.411 ( ) 9.8172 ( )0.6411
What is the dollar amount of change in sales for each new year according to the regression (slope) model? Do not use commas or $ in your answer.
help with question number 1 and 2 please. 1.The regression equation is ?? (Round to one decimal place as needed.) 2. The best predicted gross for a movie with a $125 million budget is $ million.
C) if a country increases its life expectancy, the happiness index will increase or decrease d) if the life expectancy is increased by 4.5 years in a certain country .how much will the happiness index change? Round two decimal places e) use the regression line to predict that happiness index of a country with a life expectancy of 89 years . Round to two decimal places use the space below to type your answers
Graph the scatterplot and find the equation of the regression line GDP. CO2 emissions (in millions metric tons) 1.7. 552.6 1.2. 462.3 2.5. 475.4 2.8. 374.3 3.6. 748.5 2.2. 400.9 0.8. 253.0 1.5. 318.6 2.4. 496.8 5.9. 1180.6
2. Participants were kept awake for a certain number of hours before given a visuospatial task. Researchers measured how many correct responses each participant had. Results are shown below. Use alpha = .01. Number of Correct Hours Kept Awake (X) Responses (Y) 21 X = 10 SS, = 422 Y = 10 SS, = 690 2 4 19 %3D 6. 13 SPxy =-525 ху 5 20 S, =5.70 S, = 7.29 9. 11 10 9. 14 5 15 5 17 2 18 1 17 1 13 4 18 8 11 A. Graph the data. B. State the hypotheses. C. Make a decision about the null. a. Calculate Pearson's r i. Decision about null hypothesis? b. Calculate effect size i. Interpret effect size. D. State your conclusion. E. Relate your conclusion to the research. F. Calculate the regression formula. G. If someone was kept awake for 9 hours, what is the predicted number of correct responses?
Grades on Midterm Grades on Final79 8464 7676 8385 9170 7586 7960 7975 8781 8263 63 The following table gives the data for the grades on the midterm exam and the grades on the final exam. Determine the equation of the regression line, yˆ=b0+b1x . Round the slope and y-intercept to the nearest thousandth.

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