In a Manufacturing Process, We Are Interested in Measuring the Average

question 97

Short Answer

In a manufacturing process, we are interested in measuring the average length of a certain type of bolt. Based on a preliminary sample of 9 manufactured bolts, the sample standard deviation is .3 inches. How many bolts should be sampled in order to make us 95 percent confident that the sample mean bolt length is within .02 inches of the true mean bolt length?

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Definitions:

Sensorimotor Stages

The first stage of Piaget's theory of cognitive development, spanning from birth to approximately age 2, where infants learn about the world through their senses and motor actions.

Infant's Interaction

The ways in which a baby engages with their environment and people around them, crucial for social and cognitive development.

Sensorimotor Stages

The first of Jean Piaget's four stages of cognitive development, during which infants learn through interacting with the environment.

Adapt

To adjust or change in response to new or different conditions.