If the Population Variance σ² Is Unknown,a Sample Variance S²

question 267

True/False

If the population variance σ² is unknown,a sample variance s² is a better estimator of σ² if the denominator is s² formula is (n - 1)rather than n.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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