A Hypothesis Test Is to Be Performed $8.4$ Minutes the Manager Has Installed a New Computer System and Possible

question 211

Multiple Choice

A hypothesis test is to be performed. Describe the two possible outcomes of the test using the context of the givensituation.
-Last month the average waiting time at a bank was $8.4$ minutes. The manager has installed a new computer system and claims that people will no longer have to wait as long.
The hypotheses are as follows:
Null hypothesis: average waiting time $= 8.4$ minutes
Alternative hypothesis: average waiting time $< 8.4$ minutes

• A) Rejecting the null hypothesis means there is evidence that the mean waiting time is less than \(8.4\) minutes.
• Failing to reject the null hypothesis means there is insufficient evidence to conclude that the mean waiting time is less than \(8.4\) minutes.
• B) Rejecting the null hypothesis means there is evidence that the mean waiting time is not equal to \(8.4\) minutes.
• Failing to reject the null hypothesis means there is insufficient evidence to conclude that the mean waiting time is less than \(8.4\) minutes.
• C) Rejecting the null hypothesis means there is insufficient evidence that the mean waiting time is equal to \(8.4\) minutes.
• Accepting the null hypothesis means there is evidence to conclude that the mean waiting time is equal to \(8.4\) minutes.
• D) Rejecting the null hypothesis means there is evidence that the mean waiting time is less than \(8.4\) minutes.
• Accepting the null hypothesis means there is evidence to conclude that the mean waiting time is equal to \(8.4\) minutes.

---

Definitions:

Rejection Is Ineffective

A legal principle indicating that simply refusing or rejecting an offer or contract does not nullify or void its terms or its potential effects.

Notifies The Seller

The act of informing the seller about relevant information or decisions, typically in a commercial transaction.

Right To Inspect

The right to inspect allows one party to a transaction, typically the buyer, to examine goods or property before finalizing the purchase to ensure they meet specified criteria or quality.

Duty Of Performance

An obligation in contract law requiring parties to complete their contractual obligations to a satisfactory standard.