A researcher conducts a one-tailed one-sample t test on 25 subjects and finds th

Question

A researcher conducts a one-tailed one-sample t test on 25 subjects and finds that t = 1.89. Report the results as they would appear in an academic journal entry.

a. t(25) = 1.89, p = 6.6

b. t(25) = 1.89, p = 4.8

c. t(25) = 1.89, p = 5.5

d. t(25) = 1.89, p = 3.9

A researcher conducts a two-tailed one-sample t test on 24 subjects and find that t = 1.89. About what is the actual Type 1 error for the study?

8%

15%

26%

.01%

A researcher conducts a two-tailed one-sample t test on 24 subjects and find that t = 1.89. How confident can the researcher be that the results are true and not due to mere sampling error?

.05%

85%

92%

100%

A researcher conducts a two-tailed one-sample t test on 24 subjects and find that t = 1.89. Report the results as they would appear in an academic journal.

t(23) =1.89, p=.08

t(23) =1.89, p=.99

t(23) =1.89, p=.25

t(23) =1.89, p=.11

8%

15%

26%

.01%

Explanation / Answer

Ans:

1)Type I error=significance level

2)

p-value=0.08

1-0.08=0.92

92%

3)

n=24

df=24-1=23

Test statistc:

t(23)=1.89

p-value=TDIST(1.89,23,2)=0.08

t(23)=1.89

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