A Survey of 25 Grocery Stores Revealed That the Average

question 80

Multiple Choice

A survey of 25 grocery stores revealed that the average price of a 4-litre bag of milk was $2.98 with
A standard error of $0.10. What is the 98% confidence interval to estimate the true cost of a 4-litre
Bag of milk?

• A) $2.75 to $3.21
• B) $2.85 to $3.11
• C) $2.94 to $3.02
• D) $2.95 to $3.01
• E) $2.77 to $3.19

---

Definitions:

Mental Representation

Internal images, symbols, or concepts used to understand the world, remember information, and solve problems.

Sensorimotor Substage

A phase in Jean Piaget's theory of cognitive development, occurring from birth to approximately age 2, where infants learn through interacting with their environment using their senses and motor actions.

Secondary Circular Reactions

Repetitive actions in infant development focused on external objects, forming part of Piaget's sensorimotor stage.

Tertiary Circular Reactions

The stage in infant development, according to Piaget, characterized by the purposeful adaptation of established schemes to new situations.