Question: QUESTION Strictly Using Excel ( Avail Steps and formulae) and label work respectively The following table shows sample data for the number of motor registration

QUESTION

Strictly Using Excel ( Avail Steps and formulae) and label work respectively

The following table shows sample data for the number of motor registration and the number of tyres sold in a certain territory for the same period.

Year	1	2	3	4	5
Motor Registration	600	630	720	750	800
No of Tyres Sold	1250	1100	1300	1350	1500

Using the above data and analysis using Excel, do the following;

(i) Compute the correlation coefficient between motor registration and sale of motor tyres. Explain your results

(ii) Obtain a scatter diagram of motor registration and sale of motor tyres for the territory

(iii) Find the least-squares estimates for the regression line = ₀ + ₁ using the Excel SLOPE and INTERCEPT functions.

(iv) Carry out the analysis using Excels built-in regression tool

(v) Fit a regression equation of the form = ₀ + ₁ to this data. Interpret your results in the context of the problem.

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