I want to check if the difference in my findings are statistically significantly different from the findings of an earlies study. The problem is that I do not have the full data-sets of the earlies study.

"

This is the data from the earlier study:

(.46 percent average) [t(15) = 5.39, SEM = .06,p < .001],

"

It also mentions that there were 48 participants.

This is my data set:

50

33,333332

66,666664

0

0

33,333332

50

50

83,333336

0

33,333332

100

- Gives the average of 41,6666663333

Now is my average of 41,6 % statistically significantly different from the 46 % found by the earlies study? Help is very appreciated!

"

This is the data from the earlier study:

(.46 percent average) [t(15) = 5.39, SEM = .06,p < .001],

"

It also mentions that there were 48 participants.

This is my data set:

50

33,333332

66,666664

0

0

33,333332

50

50

83,333336

0

33,333332

100

- Gives the average of 41,6666663333

Now is my average of 41,6 % statistically significantly different from the 46 % found by the earlies study? Help is very appreciated!

**BTW**: I only need to know how to do this in a computer program like gnumeric, open office calc or similar...! I need the results not a huge explanation how to do it manually.
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