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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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blinkrb blinkrb
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A year ago
The test statistic

​

\(\style{font-family:Times New Roman;}{\frac{{\overline X}_1-{\overline X}_2-\Delta_0}{\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}}}\)

​

follows a standard normal distribution if:



▸

\(\style{font-family:Times New Roman;}{n_1\geq30}\)and the samples are dependent.



▸

\(\style{font-family:Times New Roman;}{n_2\geq30}\)and the samples are dependent.



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both\(\style{font-family:Times New Roman;}{n_1}\)and\(\style{font-family:Times New Roman;}{n_2\geq30}\)and the samples are dependent.



▸

both\(\style{font-family:Times New Roman;}{n_1}\)and\(\style{font-family:Times New Roman;}{n_2\geq30}\)and the samples are independent.

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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OmfgtimmyOmfgtimmy
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A year ago
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blinkrb Author
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A year ago
Smart ... Thanks!
alpheratz
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Yesterday
Thank you, thank you, thank you!
IvanaVR
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2 hours ago
this is exactly what I needed
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