The forecast for 2019 by the logarithmic regression method is88.441181.533486.393884.9817Question 13 (ListenThe MAE of the logarithmic regression method is1.37921.10112.07662.0653Year2002200320042005200620072008200920102011201220132014201520162017Sales45474848525356585964697073767980

Solution: Let X be the Year and Y be the sales. From the given information,

Answered: The forecast for 2019 by the…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.8: Fitting Exponential Models To Data

Problem 15SE: What is the y -intercept on the graph of the logistic model given in the previous exercise?

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What is the y -intercept on the graph of the logistic model given in the previous exercise?
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An investigator modeled the log-odds of getting stomach cancer as a function of number of servings of vegetables per week and the number of servings of red mean per week using logistic regression. The odds that a person gets stomach cancer if they have 4 servings of red meat a week are 1.2 times the odds of cancer for someone who has 3 servings of red meat a week. suppose in the example, where the regression coefficient for servings of vegetables is -0.105, we have also obtained from the SAS output a Standard Error from the output of 0.097. Since our estimates are maximum likelihood estimates, we can assume that they follow a normal distribution. As such we can create confidence intervals for the regression coefficients using standard practices for estimates that have normal sampling distributions. Calculate a 95% confidence interval for the ODDS RATIO given above (odds ratio representing the change in odds of stomach cancer for a one-serving increase in vegetables. Give the…
Suppose sales for the past 6 months have been94, 91, 102, 99, 109, and 118 Using a smoothing coefficient of 0.7, what is the exponentially smoothed value for the 4th period? (please round your answer to 1 decimal place)
A professor surveyed students on their study habits, where "x" is the number of hours studying and "y" is the resulting test score. Using a logarithmic regression, predict the number of hours needed to score 95. (Graph and equation in picture provided)
An investigator modeled the log-odds of getting stomach cancer as a function of number of servings of vegetables per week and the number of servings of red mean per week using logistic regression. The odds that a person gets stomach cancer if they have 4 servings of red meat a week are 1.2 times the odds of cancer for someone who has 3 servings of red meat a week. What is the odds ratio for stomach cancer for someone who has 5 servings as opposed to someone who has 3 servings? Enter your answer to 3 digits beyond the decimal point.

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