TABLE 9-3 An Appliance Manufacturer Claims to Have Developed a Compact Microwave

question 104

True/False

TABLE 9-3
An appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W. From previous studies, it is believed that power consumption for microwave ovens is normally distributed with a population standard deviation of 15 W. A consumer group has decided to try to discover if the claim appears true. They take a sample of 20 microwave ovens and find that they consume a mean of 257.3 W.
-Referring to Table 9-3, the null hypothesis will be rejected at 5% level of significance.

---

Definitions:

Intrusive Environment

A setting or situation where privacy is limited, and external factors significantly affect personal space or work conditions.

Systematically

Done according to a fixed plan or system; methodical.

Confidentiality

The obligation to safeguard personal or sensitive information from unauthorized access or disclosure.

Situational Interview

A structured interview in which the interviewer describes a situation likely to arise on the job, then asks the candidate what he or she would do in that situation.