3. Consider the gretl output below on the regression of the number of cigarettes (cigs) smoked per dayon log income (lincome). With this information, answer the following:Model 1: OLS, using observations 1-807Dependent variable: cigsconstlincomeCoefficient Std. Error t-ratio p-value-3.62159 6.57698 -0.5506 0.58201.27054 0.677100 1.876 0.0610Mean dependent varSum squared residR²F(1,805)Log-likelihoodSchwarz criterion8.686493 S.D. dependent var151092.8 S.E. of regression0.004355 Adjusted R²3.521023 P-value(F)-3256.327 Akaike criterion6526.040 Hannan-Quinn13.7215213.700110.0031180.0609576516.6546520.258(a) Interpret the coefficient on lincome. Is this result intuitive?(b) Interpret the intercept coefficient. Is this result intuitive?(c) Suppose we multipled cigs by 10 (for all observations). What will happen to the estimatedintercept and slope parameters (be explicit)?1(d) Suppose we multiplied cigs by 10 (for all observations). What will happen to SST? What willhappen to R²?

The dependent variable is cigs.The independent variable is lincome.The sample size is .The…

Answered: 3. Consider the gretl output below on…

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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Which of the following tools is not appropriate for studying the relationship between two numerica variables? Correlation coefficient Scatter plot Historam Regression
= 12.3 The Regression Equation X E Rounding Numbers Calculator X xyzHomework Assessment + → C A A https://www.xyzhomework.com 80% Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and the profits (in 3- millions of dollars). Determine if there is a significant linear correlation between advertising cost and profit . Use a significance level of 0.01 and round all values to 4 decimal places. Advertising Cost Profit 3 21 4 22 18 6. 23 30 8 33 23 10 31 Ho: p = 0 Ha: p # 0 Find the Linear Correlation Coefficient r= Find the p-value p-value = The p-value is O Less than (or equal to) a O Greater than a The p-value leads to a decișion to Reject Ho O Accept Ho O Do Not Reject Ho signific voters p. The n The conclusion is There is a significant positive linear correlation between advertising expense and profit. O There is a significant negative linear correlation between advertising expense and profit. There ie n cianifiannt linaar corralation…
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8

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