Question
Asked Nov 20, 2019
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For the data set below
(a) Determine the least-squares regression line
(b) Graph the least-squares regression line on the scatter diagram
3
4
6
8
4
6
11
16
(a) Determine the least-squares regression line
) (Round to four decimal places as needed)
y =x
Enter your answer in the ed it fields and then click Check Answer
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For the data set below (a) Determine the least-squares regression line (b) Graph the least-squares regression line on the scatter diagram 3 4 6 8 4 6 11 16 (a) Determine the least-squares regression line ) (Round to four decimal places as needed) y =x Enter your answer in the ed it fields and then click Check Answer part 1 remaining e Type here to search X

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Expert Answer

Step 1

a.

Step-by-step procedure to obtain the least square regression line using Excel Mega stat as follows:

  • Choose MegaStat > Correlation/Regression > Regression Analysis.
  • Select Input ranges, enter the values of X, Independent variable and enter the values of Y, Dependent variable.
  • Check the appropriate options in Options.
  • Click OK
Step 2

Output obtained using Excel Mega stat is represented as follows:

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Regression Analysis 0.940 n 5 r 0.970 k 1 Dep. Var. y Std. Error 1.375 ANOVA table Source Regression SS MS df P-value 0063 47.32 89.5243 89.5243 Residual 5.6757 1.8919 Total 95.2000 4 Regression output variables coefficients std. error confidence interval t(df-3) p-value 95% lower 95% upper 1219 0063 Intercept 4.1892 2.4595 1.9583 0.3575 2.139 6.879 10.4214 1.3216 2.0430 3.5973

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Step 3

From the above output, the least square r...

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(2.4595)x+(-4.1892)

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