This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: ENGM2032, Applied Probability and Statistics Winter 2010 Assignment #1: Solutions 1) The sample means, standard deviations, and medians (in l/100 km) of observed fuel consump tions for both cars are summarized in the following table: Car A Car B a) Mean, x 5.20 5.69 b) St.Dev., s 0.461 0.483 c) Median, x 5.20 5.70 d) The sample mean and median fuel consumption for Car B are larger than those for Car A. Thus, Car A is superior in the sense that it gets better fuel economy. Also, the sample standard deviation for Car A is smaller (although only a bit) than that of Car B. Thus, the fuel economy for Car A shows more consistency under different driving conditions which is somewhat desirable. We shall see in Chapter 7 how to go about quantifying both of these measures simultaneously to make informed decisions. 2) a) The sample mean is 1.030. The sample median is (1 . 007 + 1 . 011) / 2 = 1 . 009....
View Full
Document
 Spring '10
 yao

Click to edit the document details