Instruction 9-4 A Drug Company Is Considering Marketing a New Local Anaesthetic

question 120

Short Answer

Instruction 9-4
A drug company is considering marketing a new local anaesthetic. The effective time of the anaesthetic the drug company is currently producing has a normal distribution with a mean of 7.4 minutes with a standard deviation of 1.2 minutes. The chemistry of the new anaesthetic is such that the effective time should be normal with the same standard deviation, but the mean effective time may be lower. If it is lower, the drug company will market the new anaesthetic; otherwise, it will continue to produce the older drug. A sample of size 36 results in a sample mean of 7.1. A hypothesis test will be done to help make the decision.
-Referring to Instruction 9-4,what is the probability of making a Type II error if the mean effective time of the anaesthetic is 7.0 using a 0.05 level of significance?

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Definitions:

Package Carrier

A company or service that specializes in the delivery of parcels and documents from one location to another.

Drop-Shipping

A product fulfillment strategy in retail where the store doesn't maintain an inventory of the items it sells. Rather, upon selling a product, the store orders it from a third party and arranges for it to be delivered straight to the buyer.

Manufacturer Storage

A logistics strategy where the manufacturer holds stock, typically in a warehouse, until it is ordered by retailers or customers.

Last Mile Delivery

The final step of the delivery process from a distribution center or facility to the end customer's destination, often seen as key to customer satisfaction and efficiency in logistics.