Test Whether He Given Claim Is Supported or Not Supported

question 39

Multiple Choice

Test whether he given claim is supported or not supported using a 0.05 significance level. Assume that the sample has been randomly selected from a population with a normal distribution.
-A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1300 hours. A product tester selects 25 bulbs and finds the mean lifetime to be 1280 hours with a standard deviation of 80 hours. He claims that the mean lifetime is different from 1300 hours. Use a significance level of 0.05 to test whether the product tester's claim is supported or not supported.

• A)supported
• B)not supported

---

Definitions:

Purchase-Of-Service Agreement

A contract between a funding source (like a government agency) and a service provider, where the provider agrees to offer specified services to clients for a set fee.

Contracts

Legal documents that outline the terms, conditions, rights, and responsibilities agreed upon by two or more parties.

Planned Change Process

A systematic approach aimed at transforming existing methods or conditions into desired ones through specific steps and strategies.

Measurable Objective

A specific, quantifiable, and time-bound goal that can be used to evaluate progress or success in achieving defined outcomes.