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

question 153

True/False

Instruction 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 Instruction 9-3,the null hypothesis will be rejected at 5% level of significance.

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Definitions:

Quiet Period

A time frame in which companies are restricted from making certain announcements to prevent affecting their stock price before a securities offering.

Lockup Agreement

A contract stating that shareholders of a newly issued stock agree not to sell their shares for a certain period following an initial public offering.

Initial Public Offering (IPO)

The first sale of stock by a company to the public, marking a transition from a private to a publicly traded company.

Share Repurchase Program

A plan initiated by a company to buy back its own shares from the marketplace, which can signal confidence in the business and often leads to an increase in the share price.