A Social Researcher Claims That the Average Adult Listens to the Radio

question 119

Essay

A social researcher claims that the average adult listens to the radio less than 26 hours per week.He collects data on 25 individuals' radio listening habits and finds that the mean number of hours that the 25 people spent listening to the radio was 22.4 hours.If the population standard deviation is known to be eight hours,can we conclude at the 1% significance level that he is right?

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Definitions:

Eudicot

A significant classification of bloom-bearing plants known for possessing dual seed leaves, referred to as cotyledons, during the sprouting process.

Apomixis

Apomixis is a form of asexual reproduction that allows plants to produce seeds without fertilization, leading to offspring genetically identical to the parent.

Scarification

A process of weakening the outer coat of seeds to encourage germination, can be chemical, mechanical, or thermal.

Imbibition

Imbibition is the process of absorption of water by substances, causing them to swell without dissolving, critically initiating seed germination.