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Two independent samples of sizes 20 and 30 are randomly selected from two normally distributed populations in order to test the difference between the population means, . Assume that the population variances are unknown but equal. From the following options, how may the sampling distribution of the sample mean difference
best be described?
Internal Combustion
A process where fuel is burned within an engine, producing power through the expansion of gases.
Carburetor
A device in an internal combustion engine that mixes air with a fine spray of liquid fuel.
Compulsory Education
The requirement by law for children to attend school up to a certain age to ensure they receive a basic education.
Liberal Arts
A broad field of study that encompasses arts, sciences, and humanities, aimed at cultivating general intellectual abilities rather than technical or professional skills.
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