Define sample standard error in terms of both sample means and the sampling distribution.
What will be an ideal response?
The sample standard error is the estimate of the standard deviation of sample means made from a give sample. It estimates the standard deviation of the sampling distribution.
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In the new project management professionalism model:
A) Personnel should be in a state of flux with regard to job assignment. B) Process skills will not be important. C) Traditional project champion activities will supplant the currently emphasized nontraditional skills. D) Project management should be a dedicated career path.
The value of a chi-squared distribution with 8 degrees of freedom such that the area to its left is 0.95 is 2.73
Indicate whether the statement is true or false
In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed. y = 10 - 18x1 + 3x2 + 14x3 Also, the following standard errors and the sum of squares were obtained. sb1 = 3 sb2 = 6 sb3 = 7 SST = 4800 SSE = 1296 The p-value for testing the significance of the regression model is
a. less than .01. b. between .01 and .025. c. between .025 and .05. d. greater than .10.
In multiple regression analysis involving 10 independent variables and 80 observations, the critical value of t for testing individual coefficients in the model will have:
A) 70 degrees of freedom. B) 10 degrees of freedom. C) 69 degrees of freedom. D) 9 degrees of freedom.