Should we use one tailed t test or two tailed t test or...?

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Two of these correspond to one-tailed tests and one corresponds to a two-tailed ... use a one-tailed test ... we have the output from a two-sample t-test ...
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Positive: 93 %

... TAILED t-TESTS. A one- or two-tailed t-test is determined by whether the total area of a is placed in one tail or divided equally between the two tails ...
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Positive: 90 %

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Will That be One Tail or Two? You will often see a statistical test or a hypothesis referred to as one-tailed or two-tailed. A one-tailed hypothesis is ...
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Positive: 93 %

A one-tailed test should be used ... to use a one-tailed test simply because one is ... than a two-tailed test (a one-tailed test with alpha ...
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Positive: 88 %

... (with an unpaired t test). Both one- and two-tail P ... statistical tests). When is it appropriate to use a one ... you should calculate a two-tailed ...
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Positive: 74 %

t-Test for the Significance of ... If we examine two different levels of one ... observed value of t=+1.9 (actually, for a two-tailed test it would ...
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Positive: 51 %

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I was recently asked about when to use one and two tailed tests. The long answer is: Use one tailed tests when you have a specific hypothesis about the ...
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Positive: 93 %

Should we plan a study with a one-tailed ... never use one-tailed tests. Assume we ... The only situation where one might use a one-tailed test ...
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Positive: 92 %

Should I use One-tailed or Two-tailed Hypothesis Tests? ... two circumstances under which you would use a ... Should I use One-tailed or Two-tailed ...
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Positive: 87 %

A two tailed test tests for a difference in either direction. Thus the P value would be the area under the t distribution to the right of t=1.92 PLUS the ...
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Positive: 80 %

... a single two-tailed test, and two one-tailed tests, ... one should use a two-tailed test that ... test statistic follows a Student's t ...
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Positive: 70 %

Click on the OK button to perform the one-sample t test. ... But we didn't want a two-tailed test; ... then you should use the bottom row of the ...
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Positive: 57 %

... is the two-tailed test. We can look at the ... Two-sample t test with equal variances ... One-tailed test distribution Why would you use a one ...
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Positive: 41 %

When should we use one-tailed ... ‘We used one-tailed two-sample t-tests to test the prediction that ... One- versus two-tailed tests in ...
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Positive: 22 %

... the one-tailed and two-tailed tests. We will ... One-Tailed Vs. Two-Tailed Tests: Differences ... test called a t-test, which compares two ...
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Positive: 10 %

One- and Two-Tailed Tests . ... we will use a two-tailed ... In the one-tailed test it is π > 0.5. You should always decide whether you are going to ...
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Positive: 10 %

Language/Program Function Notes; Microsoft Excel pre 2010: TTEST(array1, array2, tails, type) See : Microsoft Excel 2010 and later: T.TEST(array1, array2 ...
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Positive: 10 %

A caution should be noted here: one-tailed tests, ... or "it was predicted that" is not sufficient to justify the use of a one-tailed test. ... (And don ...
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93 %