dolution
dolution.
Open the EFS data-set:
a. Using a one-mean 
-test, test the hypothesis that the average number of cars or vans per household in the UK (variable a124) is exactly one
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Order Paper Nowb. Is the distribution of the mean of the above variable normal? Plot the histogram and the normal curve, then apply a Kolmogorov-Smirnov test for normality
c. Test again the hypothesis of one car per household using a non-parametric test. Do results differ? Why?
d. Compare mean expenditure in restaurants and hotels (variable p611) between the lowest income quartile and the highest income quartile (as classified by variable INCRANGE). Are means significantly different? Does the assumption of equality of variance influence the results?
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