Author Question: The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ... (Read 16 times)

piesebel · **on:** Jun 20, 2018

The variance of the scores: 0, 1, 1, and 2 is

A) .25
B) .5
C) .5
D) 1

Question 2

The comparison distribution for a t test for independent means is a t distribution instead of a normal curve because

A) tables are not available for the normal curve.
B) the population variance is estimated.
C) Z distributions were not used at the time the t test for independent means was invented.
D) there are more degrees of freedom for two samples than for one.

manuelcastillo · **Reply #1 on:** Jun 20, 2018

Answer to Question 1

B

Answer to Question 2

B

piesebel · **Reply #2 on:** Jun 20, 2018

Thank you!

manuelcastillo · **Reply #3 on:** Jun 20, 2018

Happy to help

Author Question: The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ... (Read 16 times)

piesebel

The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ...

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manuelcastillo

The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ...

piesebel

The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ...

manuelcastillo

The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ...