Statl Final Prep (1) Word Review View Help Tell me what you want to do AaBbccDd

Question

Statl Final Prep (1) Word Review View Help Tell me what you want to do AaBbccDd AaBbcDd AaBbC AaBboct AaB AaBbccD AaBbceDd Ado | 1Narmal tNo Spac .e? ,U). Heading 1 Heading 2 Title Subtitle Paragraph Styles Question 2: (a) When two dependent populations are compared for a certain variable, and the variances of the populations' variable are unknown, the significance of their difference is determined by the following test statistic A) S, n1 +nz-2 B) Zo + 71 c) to- Pyn 1 n D) to - 71 (b) When two dependent populations are compared for a certain variable, and the variances of the populations' variable are known, the standard error of the difference is:

Explanation / Answer

Question #2 : Option D

As populations are dependent, this is paired t-test where we find the mean and standard error of differences.

Formula for test statistics in option D gives the value of t.

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