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A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects i

ID: 3365543 • Letter: A

Question

A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects in each group) and finds that t = 2.182. About what is the actual Type 1 error for the study?

between 2.5 and 3

between 0 and .05

between 3 and 3.5

between 1 and 2.5

A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects in each group) and finds that t = 2.182. How confident can the researcher be that the results are true and not due to mere sampling error?

Around 98%

Around 86%

Around 84%

Around 62%

A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects in each group) and finds that t = 2.182. Report the results as they would appear in an academic journal.

t(30) = .05, p = .83

t(30) = .05, p = .02

t(30) = 2.182, p = .02

t(30) = 2.182, p = .83

A researcher conducts a one-tailed independent samples t test on 20 subjects (10 subjects in each group) and finds that t = 2.32665.How confident can the research be that the results are true and not due to mere sampling error?

50

79

100

A researcher conducts a one-tailed independent samples t test on 20 subjects (10 subjects in each group) and finds that t = 2.32665. Report the results as they would appear in an academic journal.

t(18) = 7.32568, p = .50

t(18) = 7.32568, p = .02

t(18) = 2.32665, p = .50

t(18) = 2.32665, p = .02

between 2.5 and 3

between 0 and .05

between 3 and 3.5

between 1 and 2.5

A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects in each group) and finds that t = 2.182. How confident can the researcher be that the results are true and not due to mere sampling error?

Around 98%

Around 86%

Around 84%

Around 62%

A research conducts a one-tailed two-sample t test on 32 subjects (16 subjects in each group) and finds that t = 2.182. Report the results as they would appear in an academic journal.

t(30) = .05, p = .83

t(30) = .05, p = .02

t(30) = 2.182, p = .02

t(30) = 2.182, p = .83

A researcher conducts a one-tailed independent samples t test on 20 subjects (10 subjects in each group) and finds that t = 2.32665.How confident can the research be that the results are true and not due to mere sampling error?

50

79

100

A researcher conducts a one-tailed independent samples t test on 20 subjects (10 subjects in each group) and finds that t = 2.32665. Report the results as they would appear in an academic journal.

t(18) = 7.32568, p = .50

t(18) = 7.32568, p = .02

t(18) = 2.32665, p = .50

t(18) = 2.32665, p = .02

Explanation / Answer

1 ) The actual Type-I error for this study is between between 0 and .05

2 )  Around 98%

3 )  t(30) = 2.182, p = .02

4 )  Around 98%

5 )  t(18) = 2.32665 , p = .02

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