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

question 81

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:

Voting

The act of expressing a choice or preference in a democratic process, often through ballots to elect representatives, decide policies, or settle questions.

Latinos

People in the United States with cultural ties to Latin America, including those of Central American, South American, or Caribbean descent.

Political Participation

Activities that citizens engage in to influence the selection of political leaders or the policies they pursue.

Immigrants

Individuals who move from their country of origin to live in another country permanently, often in search of better living conditions or opportunities.