What are the validity conditions required for comparing two means using the theo

Question

What are the validity conditions required for comparing two means using the theory based approach?

Question options:

There must be at least 10 total successes and 10 total failures.

There must be 10 successes and 10 failures in each group.

The shape of all the data must be symmetric or the total sample size must be at least 20 and the sample distribution of all the data should not be strongly skewed.

The variable should have a symmetric distribution in both groups or sample size of at least 20 in each group and the sample distributions should not be strongly skewed.

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True or false. To find the p-value for a difference in means test we compare the standardized statistic to the normal distribution.

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What is the difference between a two-sample test and a two-sided test?

Question options:

There is no difference

A two-sample test has to do with the alternative hypothesis; a two-sided test compares two groups.

A two-sided test has to do with the alternative hypothesis; a two-sample test compares two groups.

A two-sided test is categorical and a two-sample test is quantitative

There must be at least 10 total successes and 10 total failures.

There must be 10 successes and 10 failures in each group.

The shape of all the data must be symmetric or the total sample size must be at least 20 and the sample distribution of all the data should not be strongly skewed.

The variable should have a symmetric distribution in both groups or sample size of at least 20 in each group and the sample distributions should not be strongly skewed.

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Explanation / Answer

1)The variable should have a symmetric distribution in both groups or sample size of at least 20 in each group and the sample distributions should not be strongly skewed.

2)

true

3)

A two-sided test has to do with the alternative hypothesis; a two-sample test compares two groups.

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