Question

1. The T distribution can be use when comparing two population with population variance unknown. True...

1. The T distribution can be use when comparing two population with population variance unknown.

True

False

2. You may use the Normal distribution when comparing two population with population variance known.

True

False

0 0
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Answer #1

1)

TRUE

The T distribution can be use when comparing two population with population variance unknown. The degree of freedom is n1 + n2 -2.

In such case we used sample standard deviations S1 and S2 respectively.

2)

TRUE

The Normal distribution may used when comparing two population with population variance known.

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