Estimateurs Différence A B A-B Projet 1 57.2 59.9 -2.7 Projet 2 53.6 55.7 -2.1 Projet 3 83.4 83.4 0 Projet 4 103.2 103.3 -0.1 Projet 5 66.2 69.3 -3.1 Projet 6 27.3 28.4 Projet 7 45.2 46.1 Somme: Moyenne: Écart-type:
A major company in the Montreal area, offering a
Seven projects were selected, each of which had to be evaluated by each of the two estimators, with the order of the projects submitted being random. The obtained estimates are presented in the table below.
a) Complete the table above by calculating: i. The differences (A-B) ii. The sum of the differences iii. The
b) What is the value of the t-statistic?
c) What is the critical t-value for this test at a significance level of 1%?
d) Is there a significant difference in the estimated value of the projects between the estimators at a significance level of 1%? (YES/NO). Explain.


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