In Hypothesis Tests About P₁ - P₂, the Pooled Estimator $\bar { p } _ { 1 }$

question 1

Multiple Choice

In hypothesis tests about p₁ - p₂, the pooled estimator of p is a(n)

• A) simple average of \(\bar { p } _ { 1 }\) and \(\bar { p } _ { 2 }\) .
• B) weighted average of \(\bar { p } _ { 1 }\) and \(\bar { p } _ { 2 }\) .
• C) geometric average of \(\bar { p } _ { 1 }\) and \(\bar { p } _ { 2 }\) .
• D) exponential average of \(\bar { p } _ { 1 }\) and \(\bar { p } _ { 2 }\) .

Understand the concept and application of unobtrusive research methods.

Identify different types of unobtrusive measures including accretion, physical erosion, and archival strategies.

Analyze the use of public and private archival materials in research.

Recognize the importance of reducing researcher bias and reactivity through unobtrusive measures.

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