Measures of Dis...

The standard error of two means is equal to__________.

The value of $$X^2$$ describes the magnitude of the difference between___________.

Standard error measures the dispersion from the_________-.

a) T-distribution varies from+infinity to-infinity.
b)The variance of t distribution and the variance of normal distribution become closer and closer as the size of the sample increases.

If the standard deviation is small, we define a new variable known as ________.

The question of accepting or rejecting a hypothesis drawn depends upon ___________.

T-distribution is symmetrical like normal distribution and its mean value is____________.

A simple formula to calculate the standard error is___________.

For a large sample, the sampling distribution of $$X^2$$ may form________.

Which of the following is not true?