【单选题】义齿基托树脂的粉液混合调拌后,对其聚合的速度影响最大的因素是()
【单选题】Which of the following is true of standard error?
A.
It can take negative values.
B.
It is an estimate of the standard deviation.
C.
It is the square root of the variance.
D.
It complicates the computation of confidence intervals.
【单选题】The standard error of the mean is:
A.
the standard deviation of the sampling distribution of sample means.
B.
always normally distributed.
C.
sometimes less than 0.
【单选题】The standard error of estimate is based on:
A.
squared deviations from the regression line.
C.
squared units of the independent variable.
D.
the regression mean square error.
【单选题】义齿基托树脂的粉液混合调拌后,对其聚合的速度影响最大的是:
【判断题】Standard error is a kind of standard difference and it could be used indicate the extent of sampling error.
【单选题】The multiple standard error of estimate is:
A.
found by taking the square root of SSR/SS total.
B.
negative when one of the net regression coefficients is 0.
C.
based on the term, (Y – Ŷ) 2.
D.
the error of estimating the regression coefficients.
【单选题】义齿基托树脂的粉液混合调拌后,对其聚合的速度影响最大的因素是