Can anyone provide True or False answers for these questions? 1. T F The sample

Question

Can anyone provide True or False answers for these questions?

1. T F The sample size in each independent sample must be the same if we are to test for differences between the means of two independent populations 2. T F When testing for differences between the means of two related populations, we can use either a one-tailed or two-tailed test. 3. T F Repeated measurements from the same individuals is an example of data collected from two related populations. 4. T F When the sample sizes are equal, the pooled variance of the two groups is the average of the two sample variances 5. T F A statistics professor wanted to test whether the grades on a statistics test were the same for upper and lower classmen. The professor took a random sample of size "10" from each, conducted a test and found out that the variances were equal. For this situation, the professor should use a "t" test with related samples

Explanation / Answer

1) The answer is False. there is no need of the sample size to be same in independent sampleing if we are to test for the diffrence between the means of two independent population.

2) The answer is False. we have to use two tailed test, because when we use one tailed test we look for one possibility and denay the other completly.

3) The answer is True. The repeated measurements from the same individuals is an example of data collected from two related populations.

4) The answer is true. When the sample size are equal, the pooled variance of the group is the average of the two sample varinces.

5) The answer is True. for this situation, the professor should use a "t" test with related sample.

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