Verify the regression model assumptions

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Reference no: EM131042061

Problem 1:

A. Verify the regression model assumptions.

B. Perform the hypotheses test for the linear relationship between x and y, using level of significance =0.05.

The accompanying table shows the teams winning percentage (x) and power rating (y) for the 2011 NCAA basketball tournament.

School

Win % (x)

Rating (y)

OSU

91.9

121

Kansas

92.1

119.5

SD state

91.4

118.1

Duke

86.5

117.8

Connecticut

77.5

117.5

Pitt

82.4

116.9

Kentucky

76.3

116.6

ND

79.4

116.3

Problem 2:

Listed in the table are the low (x) and high (y) temperatures for a particular day in 2006, measure in degrees Fahrenheit, for a random sample of cities worldwide.

City

Low(x)

High(y)

Kolkata

57

77

London

36

45

Montreal

7

21

Rome

39

55

San juan

70

83

shanghai

34

45

Refer to above data.

a. Construct a 99% prediction interval for the high temp for a randomly chosen city with a low temp of 30 degrees.

b. Which of the intervals you constructed is wider and why?

Reference no: EM131042061

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