The data set in DS 12.11.10 shows the size of some files and the times that they
Question:
(a) Find β^0,β^1, and σ^2
(b) Perform the hypothesis test to assess whether it is a significant regression.
(c) What is the expected download time for a file of size 6.00?
(d) What is the value of R2?
(e) Calculate a 95% prediction interval for the downloading time of a file of size 6.00.
(f) What is the residual for the data point (4.56, 103)'.'
(g) What is the correlation between size and time?
(h) Can you predict the downloading time of a file of size 0.40?
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a The model is y 0 1x where y is the downloading time and x is the file size n ...View the full answer
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Related Book For 
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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