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

question 83

Multiple Choice

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 bolts,the sample standard deviation is .3 inches.How many bolts should be sampled in order to make us 95% confident that the sample mean bolt length is within .02 inches of the true mean bolt length?

• A)865
• B)80
• C)1470
• D)3989
• E)1197

---

Definitions:

Equilibrium Quantity

The quantity of goods or services that is supplied and demanded at the equilibrium price, where supply equals demand.

Demand Falls

A situation where there is a decrease in the quantity of a product or service that consumers are willing and able to purchase at a given price.

Equilibrium Quantity

At the market equilibrium price, the amount of goods or services offered matches the amount requested.

Supply Falls

A condition in which the quantity of a product or service available in the market decreases, potentially leading to higher prices.