A Random Sample of 25 Students Selected from the Student

question 48

Multiple Choice

A random sample of 25 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to determine if the average age of all the students at the university is significantly more than 24. Assume the distribution of the population of ages is normal. The p-value is between

• A) .005 to .01.
• B) .01 to .025.
• C) .025 to .05.
• D) .05 to .10.

Identify the role of social referencing in infant behavior and developmental choices.

Recognize the variability in the age at which infants reach developmental milestones.

Describe the importance of manual dexterity in early childhood development.

Understand the developmental implications of brain myelination and synaptic pruning in early childhood.

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