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Author Question: If the underlying populations are normally distributed and both population variances are equal, the ... (Read 84 times)

ddddddddddeeee4444

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Question 1

If the process of selecting individuals or objects in sample 1 has no effect on, or no relation to, the selection of individuals or objects in sample 2, the samples are:

independent.


dependent.


discrete.


paired.



Question 2

If the underlying populations are normally distributed and both population variances are equal, the test statistic

\(\style{font-family:Times New Roman;}{\frac{{\overline X}_1-{\overline X}_2-\Delta_0}{S_p^2\sqrt{\frac1{n_1}+\frac1{n_2}}}}\)

follows a:


standard normal distribution if both samples are large.


Student’stdistribution with\(\style{font-family:Times New Roman;}{n-1}\)degrees of freedom.


standard normal distribution with\(\style{font-family:Times New Roman;}{n_1+n_2-2}\)degrees of freedom.


Student’stdistribution with\(\style{font-family:Times New Roman;}{n_1+n_2-2}\)degrees of freedom.



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Marked as best answer by ddddddddddeeee4444 on Feb 26, 2023

breounasmoot

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ddddddddddeeee4444

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Reply 2 on: Feb 26, 2023
Excellent


nothere

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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