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Discuss the scatter plot and regression line

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Reference no: EM13987690

The data set shown below gives the calories and salt content in 17 brands of meat hot dogs.

• Enter the data set into excel. Using excel perform a least squares regression on the data set. Use Sodium as the y variable and Calories as the x variable. Make a scatter plot with the regression line plotted as well. Using excel compute the correlation coefficient.

• Insert the plot your created into a word document. Discuss the scatter plot and regression line. Are their outliers? Does your correlation coefficient support your analysis? Does it tell you anything else?

• If there is an outlier remove the outlier from the data set and repeat the previous two parts.

• Can you conclude that hot dogs with more calories will have more sodium (i.e. discuss correlation and causation)?

Brand Calories Sodium (mg)
1 173 458
2 191 506
3 182 473
4 190 545
5 172 496
6 147 360
7 146 387
8 139 386
9 175 507
10 136 393
11 179 405
12 153 372
13 107 144
14 195 511
15 135 405
16 140 428
17 138 339

Reference no: EM13987690

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