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Use the following data set that compares age to average "years left to live" to answer the following questions.
Age 10 20 30 40 50 60 70 80 90 100
Years to live 59.2 49.6 40.7 31.9 24.0 17.2 11.6 7.2 4 .4 2.8
a) Show the scatterplot for this data with the least squares regression line. Find R^2. How much of the variation is explained by the regression line?
b) Experiment with the non-linear regressions available on the calculator. Which seem to fit? Show the scatterplot with three different regression curves from the calculator. Label each equation, as well as the applicable R^2.
c) Choose a regression equation to predict how many "years left" a person has if he is now 101 years old. Can he count on celebrating Christmas 2015?
Simple differential equation modelling the smoke layer depth (y) in a large atrium provided with dynamic smoke extraction system.
Use your regression line equation to predict the value of y for x = 13.Round your answer to two decimal places.
The slopes in the direction field are all identical along horizontal lines and new solutions can be generated from old ones by time shifting (i.e., replacing y(t) with y(t - t0).
a company produces three electrical products-clocks radios and toasters. these products have the following resource
1. let x1 middot middot middot xn be n ge 2 independent random variables where each xi has the exponential distribution
Construct a graph showing supply and demand in the tablet case market and how are the laws of supply and demand illustrated in this graph? Explain your answers.
Test the null hypothesis that the slope coefficient is 0 versus the alternative hypothesis of greater than 0 using the probability of type 1 error equal to 0,05 and determine the two-sided 95% and 99% confidence intervals. the simple regression m..
consider the following lpmaximize z4x15x23x3subject tox1x24x3le6x12x2x3le7x14x22x3le12a add slack variables x4 x5 and
What is the probability that a randomly selected customer will spend less than $15 at this store?
Choose any of the Perspective boxes in this chapter or the opening case. Then, identify and describe at least seven metrics that could be used to measure the success of the IT systems in your chosen example. For each metric, categorize it as eit..
Using the least-significant difference test, identify the significant differences between the programs.
Define a linear map T from the vector space C to the vector space and matrix multiplication and with the identity matrix
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