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Data Set is provided in the Comments, kindly check it. You are interested to predict the Fare ($) from the Distance (km). As a first
Data Set is provided in the Comments, kindly check it.
You are interested to predict the Fare ($)from the Distance (km).As a first step, use EXCEL to draw a scatterplot of Distance(km)vs Fare ($). Annotate the axes of this plot and include a title that is meaningful and contains your network ID.
- Compute the correlation between these two variables using the CORREL function. In this Word document, type the Excel calculation you performed to compute the correlation coefficient.
- Using EXCEL add a trendline to the scatterplot and display the regression equation and coefficient of determination (R-squared value).
- Comment briefly on the scatterplot and correlation coefficient and whether a linear model is appropriate for this data.
- (2 marks) State which is the dependent variable and which is the independent variable.
- (3 marks) Discuss the value of the intercept and whether it is meaningful. Also, what does the slope measure in this scenario?
- (3 marks) What is the value of the coefficient of determination (R-squared value)? Briefly discuss what the value means and whether the model is a good fit for the data.
- (4 marks) Use the simple regression equation from part (a) to predict the Fare ($)required when the Distance (km) travelled is 5km. Comment on the accuracy of the prediction and discuss briefly.
- (4 marks) Use the simple regression equation from part (a) to predict the Fare ($) when the Distance (km) travelled is 13km. Comment on the accuracy of the prediction and discuss briefly.
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