SaveThe following table shows the hot dogs bought from a street vendor over the course of eight days ("Demand"). Also shown is the temperature for each day in degrees Celsius.Complete parts a and b below.Temperature (°C) 22922197121719Demand4830343918214133a. Calculate the slope and y-intercept for the linear regression equation for these data.ŷ = + (1) ×(Round to two decimal places as needed.)

Calculate the regression equation using a scientific calculator or excel. I used a free online…

Answered: Save The following table shows the hot…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 5PPS

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XYZ Corporation Stock Prices The following table shows the average stock price, in dollars, of XYZ Corporation in the given month. Month Stock price January 2011 43.71 February 2011 44.22 March 2011 44.44 April 2011 45.17 May 2011 45.97 a. Find the equation of the regression line. Round the regression coefficients to three decimal places. b. Plot the data points and the regression line. c. Explain in practical terms the meaning of the slope of the regression line. d. Based on the trend of the regression line, what do you predict the stock price to be in January 2012? January 2013?
Life Expectancy The following table shows the average life expectancy, in years, of a child born in the given year42 Life expectancy 2005 77.6 2007 78.1 2009 78.5 2011 78.7 2013 78.8 a. Find the equation of the regression line, and explain the meaning of its slope. b. Plot the data points and the regression line. c. Explain in practical terms the meaning of the slope of the regression line. d. Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 2019? e. Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 1580?2300
Demand for Candy Bars In this problem you will determine a linear demand equation that describes the demand for candy bars in your class. Survey your classmates to determine what price they would be willing to pay for a candy bar. Your survey form might look like the sample to the left. a Make a table of the number of respondents who answered yes at each price level. b Make a scatter plot of your data. c Find and graph the regression line y=mp+b, which gives the number of respondents y who would buy a candy bar if the price were p cents. This is the demand equation. Why is the slope m negative? d What is the p-intercept of the demand equation? What does this intercept tell you about pricing candy bars? Would you buy a candy bar from the vending machine in the hallway if the price is as indicated. Price Yes or No 50 75 1.00 1.25 1.50 1.75 2.00
Does Table 1 represent a linear function? If so, finda linear equation that models the data.
bThe average rate of change of the linear function f(x)=3x+5 between any two points is ________.
The US. import of wine (in hectoliters) for several years is given in Table 5. Determine whether the trend appearslinear. Ifso, and assuming the trend continues, in what year will imports exceed 12,000 hectoliters?
Refer to the data set: Part a: Make a scatterplot and determine which type of model best fits the data.Part b: Find the regression equation, round to two decimal places if necessary.Part c: Use the equation from Part b to determine y when x = -3.6.
A realty group would like to develop a regression model to help it set weekly rental rates (y) for beach properties during the summer season. The independent variables for this model are the number of bedrooms a property has (x1), its age in years (x2), and the number of blocks away from the ocean the property is (x3). Use the data provided to complete parts a through e below. Click the icon to view the data for randomly selected rental properties. a) Construct a regression model using all three independent variables. OX1 + (OX2 + (O X3 y = (Round the constant term to the nearest integer. Round the coefficients of x1, X2, and x3 to one decimal place as needed.)
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significa correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The table below shows the heights (in feet) and th number of stories of six notable buildings in a city. Height, x Stories, y (a) x = 503 feet (c) x = 798 feet 768 628 518 511 491 478 (b) x = 639 feet 52 48 45 42 37 35 (d) x = 731 feet Find the regression equation. ŷ =x+ (D (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below.
The percentage of adults in the labor force ages 65 or older who are still working has risen since 1990. The table below shows the data from 1990 to 2007, Let x represent the number of years since 1990 a. Plot the data points. b. Find the linear regression equation of the line of best fit for the data. c. What does the slope of this line indicate in this situation? d. If the percentage continues to increase at the same rate, predict the percent of the labor force that is 65 years old or older in the year 2027. Year % of Labor Force 1990 11.6% 1995 12.2% 2000 12.9% 2005 14.2% 2007 15 6% a. Choose the correct plot below. O A. OB. OC. 1-5, 20, 1] by (8. 17. 1) [8. 17, 1) by (-5, 20, 1] [-5, 20, 1] by [8, 17, 1] Clear all Print View an example 659 Help me solve this A D E 11/13/ 57°F %23 O Type here to search
Find the equation of the regression line Y= ?+(-?)X Round the constant three decimal places as needed. Round the coefficient to six decimal places as needed The best for predicted crash fatality rate for a year in which there are 425 metric tons of lemon imports is ? Fatalities per 100,000 population.(round two one decimal place as needed)
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