Graph of the regression line

Reference no: EM1319523

Emissions data for a sample of different vehicles are given for HC (hydrocarbon) and CO (corbon monoxide), which are both measured in grams per meter.

HC	0.65	0.55	0.72	0.83	0.57	0.51	0.43	0.37
CO	14.7	12.3	14.6	15.1	5.0	4.1	3.8	4.1

a. Construct a scatter diagram of the data.

b. Calculate the linear correlation coefficient r, and the slope and y-intercept of the regression line. Draw the graph of the regression line on the same plot as the scatter diagram above.

c. Find the best predicted value of CO given that the HC amount is 0.75 g/m.

Reference no: EM1319523

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