A Group of Statistics Students Decided to Conduct a Survey

question 57

Multiple Choice

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a population standard deviation of six hours,what is the required sample size if the error should be less than a half hour with a 95% level of confidence?

• A)554
• B)130
• C)35
• D)393

Understand the concepts of species richness and species evenness within ecological communities.

Differentiate between food webs and interaction webs, and their role in ecological communities.

Recognize the characteristics that define ecological communities, including boundaries and species interactions.

Identify primary producers within ecological communities.

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Definitions:

Disbursements

Cash or fund outflows from a company for expenses, investments, and other financial activities.

EFT

Electronic Funds Transfer, a system of transferring money from one bank account directly to another without any paper money changing hands.

Remittance Advice

A document sent by a customer to a seller, informing the seller that an invoice has been paid, typically accompanying a payment.

Credit Memo

A document issued by a seller to a buyer, reducing the amount the buyer owes to the seller under the terms of an earlier invoice.