2.80 Engine Size Hwy Fuel Efficiency 1.80 28.70 2.20 26.40 1.60 29.85 3.10 35.59
ID: 3355056 • Letter: 2
Question
2.80
Engine Size Hwy Fuel Efficiency 1.80 28.70 2.20 26.40 1.60 29.85 3.10 35.59 -1.40 44.77 2.90 41.33 3.00 34.44 2.50 35.59 1.90 33.29 2.40 31.00 2.00 32.14 2.30 34.44 1.90 32.14 2.70 31.00 2.10 24.11 2.10 24.11 2.20 26.40 2.10 25.26 3.30 28.70 3.00 31.00 2.00 42.47 2.50 45.92 3.20 40.18 3.30 34.44 1.40 29.85 3.00 28.70 1.70 36.74 2.20 25.26 1.50 28.70 2.70 24.11 1.80 39.03 1.90 43.62 2.80 34.44 3.20 32.14 2.90 37.88 2.40 33.29 1.80 32.14 3.30 31.00 1.90 26.40 2.90 26.40 3.30 36.74 1.70 33.29 2.70 27.55 3.20 26.40 1.80 39.03 2.00 41.33 2.50 33.29 1.60 31.00 2.20 40.18 2.50 37.88 2.20 34.44 1.50 36.74 2.40 27.55 1.40 27.55 3.00 40.18 2.60 26.40 2.30 35.59 3.30 35.59 2.80 33.29 1.70 32.14 1.60 33.29 2.20 39.03 2.40 25.26 2.90 35.59 1.90 27.55 2.60 40.18 3.30 44.77 1.50 31.00 3.20 36.742.80
37.88 Question SA What is range for engine sie? Question 5BWha i the variance for highway fuel efficiency? Question SC What s IQ0 for engine size? Question 6What is the shape of the highway fuel efficiency distribution? Why? (NOTE 1: Skewed right must select , skewed left must select s,etc) NOTE 2: The shape of the distribution is based on the formatted 4-decimal numbers showing in your output.) because Question7 rule predicts that percent of the engine size data should lie between 1.2301 and liters, which are+/ standard deviations) away from the mean Question 8 What varied the most in this study, engine size or highway fuel efficiency? Prove using the best measure of variability varied the most. Proof: Engine SizeExplanation / Answer
5A) RANGE FOR ENGINE SIZE= MAXIMUM OBSERVATION- MINIMUM OBSERVATION
= 3.3-1.4= 1.9
5B) VARIANCE FOR HIGHWAY FUEL EFFICIENCY IS 31.66 . I GOT THIS VALUE BY USING EXCEL FUNCTION STDEV AND AFTER GETTING THE VALUE I SQUARED IT AND GOT 31.66.
5C) IQR FOR ENGINE SIZE
Lower quartile (xL): 1.9
Upper quartile (xU): 2.9
Interquartile range (xU-xL): 1
6) Shape of the distribution :
skewness value 0.260453
mean= 33.29
variance= 31.66
mode= 26.4
median=33.29
Shape of the distribtion is symmetrical mean and median are equal.
Note: I have done the best four. Please repost question 7 and question 8.
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