Test the Claim That the Samples Come from Populations with the Same

question 37

Essay

Test the claim that the samples come from populations with the same mean. Assume that the populations are
normally distributed with the same variance. At the 0.025 significance level, test the claim that the four brands
have the same mean if the following sample results have been obtained. $$\begin{array} { c c c c } \text { Brand A } & \text { Brand B } & \text { Brand C } & \text { Brand D } \\\hline 17 & 18 & 21 & 22 \\20 & 18 & 24 & 25 \\21 & 23 & 25 & 27 \\22 & 25 & 26 & 29 \\21 & 26 & 29 & 35 \\& & 29 & 36 \\& & & 37\end{array}$$

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Definitions:

Infant

A minor or young child, especially one below the age of legal adulthood.

Binding on Infants

The legal principle that certain contractual agreements, despite involving minors (infants under the law), are enforceable against them, typically involving necessities or education.

Residents of Enemy Country

Individuals living in a nation that is currently in a state of conflict or war with another country, which could affect their legal status and rights under international law.

Not Detrimental

Describing actions, conditions, or decisions that do not cause harm or negative impact.