When a Proportionate Stratified Sampling Plan Is Used,the Weighted Mean

question 67

Multiple Choice

When a proportionate stratified sampling plan is used,the weighted mean formula:

• A)should be used to ensure statistical efficiency.
• B)should be calculated using the weights represented by the proportions.
• C)should not be used.
• D)should be used if the sample size is greater than 100.
• E)should be used only if time constraints permit.

Grasp the psychological and emotional development of preschoolers, including the concept of magical thinking.

Acknowledge the importance of safety, nutrition, and physical activities for preschoolers.

Comprehend the evolution of language skills and cognitive abilities in preschool-aged children.

Appreciate the role of imaginative play in the development of preschoolers.

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Definitions:

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