A sample of n = 25 scores produces a t statistic of t = −2.05. If the researcher is using a two-tailed test with ? = .05, what would be the correct statistical decision? The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01. The researcher can reject the null hypothesis with either ? = .05 or ? = .01. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01. It is impossible to make a decision about H0 without more information.

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A sample of n = 25 scores produces a t statistic of t = −2.05. If the researcher is using a two-tailed test with ? = .05, what would be the correct statistical decision?

  • The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01.
  • The researcher can reject the null hypothesis with either ? = .05 or ? = .01.    
  • The researcher can reject the null hypothesis with ? = .05 but not with ? = .01.
  • It is impossible to make a decision about H0 without more information.
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