It Is Estimated That the Proportion of Californians in Favor

question 7

Multiple Choice

It is estimated that the proportion of Californians in favor of Proposition 5 is between 0.4 and 0.6.The sponsors of the proposition would like to sample Californians and get a 95 percent confidence interval for the true proportion of people in favor of Proposition 5.They want to restrict the error level to 5 percentage points.The required sample size is then

• A)400.
• B)40.
• C)100.
• D)1,000.
• E)none of the above.

---

Definitions:

Visual Acuity

Keenness or sharpness of vision.

Zone Of Proximal Development

A concept in educational psychology referring to the difference between what a learner can do without help and what they can achieve with guidance and encouragement from a skilled partner.

Pretend Play

A type of play in which children use their imagination to recreate experiences or bring created scenarios to life, often involving role-play.

Mental Acts

Processes of the mind that involve thinking, reasoning, problem-solving, and perceiving, among other cognitive activities.