For a Sample 1000 Twitter Users, Tele-Market Research Reports an Average

question 130

Multiple Choice

For a sample 1000 Twitter users, Tele-Market Research reports an average age of 39.If the population standard deviation is 9.5 years, what would be the upper bound for a 90% confidence interval estimate of the mean age of all Twitter users?

• A)35.2
• B)39.5
• C)33.4
• D)41.2
• E)46.1

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Definitions:

Selling Expense

Costs incurred directly and indirectly in making sales, including advertising, shipping, and sales staff salaries.

Goods Sold

The total of merchandise that a company has sold to its customers within a specific period; often referred to as 'sales'.

Perpetual Inventory System

An inventory accounting system that records goods transactions in real-time.

FOB Shipping Point

A shipping term indicating that the buyer assumes responsibility for the goods and the associated costs once the goods leave the seller's premises.