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Questions and answers by
Yadira M
Questions (7)
A right-tailed area in the chi-square distribution equals 0.05. For 8 degrees of freedom the table value equals:
A) 11.07 B)
3 answers
684 views
When autocorrelation of the residuals is present, what effect can this have on interval estimation and significance tests
2 answers
498 views
A regression model has 2 independent variables and 16 observations, and the calculated Durbin-Watson d statistic is 2.78. What,
1 answer
550 views
The quarterly seasonal indexes for a firm’s electricity consumption are 115, 92, 81, and 112 for quarters I-IV. It has been
1 answer
689 views
For the multiple regression equation ŷ = 100 + 20x©û - 3x©ü + 120x©ý
a. Identify the y-intercept and partial regression
1 answer
616 views
An appliance repair shop owner has fitted the quadratic trend equation ŷ = 90 + 0.9x + 3x² to a time series of annual repair
1 answer
780 views
A random sample of n= 12 is drawn from a population that is normally distributed, and the sample variance is s©÷ = 19.3. Use
2 answers
751 views
