Question

Explain answer Researchers can also compare and evaluate and the differences between two means from independent...

Explain answer

Researchers can also compare and evaluate and the differences between two means from independent samples using values of z.

True

False

Researchers can compare and evaluate and the differences between two means from dependent samples using values of t.

True

False

Math   Statistics-And-Probability   
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Answer #1

1) Answer: True

Explanation: Using two sample z test (large sample test) researchers can compare and evaluate and the differences between two means from independent samples using values of z. For 5% level of significance the value of z is 1.96 for two tailed test.

2) Answer: False

Explanation: Using independent two sample t-test (small sample test) researchers can compare and evaluate and the differences between two means from independent samples using values of t.

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