Question

A common belief in our culture is that the full moon exerts a powerful influence on behavior. In fact, the full-moon effect has been studied by a number of researchers. One focus is on whether the full moon influences psychological functioning. To study this issue, one researcher analyzed the number of emergency admissions to 12 psychiatric hospitals during nights when the moon was full as opposed to when it was not full. The following SPSS output reflects the findings of this study with a non-directional (two-tailed), related-samples t-test.

A common belief in our culture is that the full moon exerts a powerful influence on behavior. In fact, the full-moon effect has been studied by a number of researchers. One focus is on whether the full moon influences psychological functioning. To study this issue, one researcher analyzed the number of emergency admissions to 12 psychiatric hospitals during nights when the moon was full as opposed to when it was not full. The following SPSS output reflects the findings of this study with a non-directional (two-tailed), related-samples t-test. Paired Samples Statistics N Std. Error Mean Pair 1 MoonFull MoonNotFull Mean 6.75 6.83 Std. Deviation 2.701 3.996 .780 1.154 Paired Samples Correlations N Correlation MoonFull & MoonNotFull 12 7 62 Pair1 Sig. 004 | Paired Samples Test Paired Differences 95% Confidence interval of the Difference Std. Error Mean Lower Upper 7 53 -1.741 1.575 t Mean -083 Std. Deviation 2 .610 75 7 4111 " 11 Sko (2.1960 of 11 Sig. (2-tailed) 9 14 Pair 1 MoonFull - MoonNotFull -111 The researcher rejects the null hypothesis with a =.05 but not with a =.01. O The researcher fails to reject the null hypothesis with either a = .05 or a =.01. o The researcher rejects the null hypothesis with a = .01 but not with a =.05. O The researcher rejects the null hypothesis with either a = .05 or a = .01.

Answer 1

p - Value corresponding to the paired t test is 0.914 which is greater than 0.05 and 0.01. Hence,

Researcher should not reject the null hypothesis at 0.05 or 0.01.

Option B is correct.