A Random Sample of 79 Companies from the Forbes 500

question 63

Multiple Choice

A random sample of 79 companies from the Forbes 500 list (which actually consists of nearly 800 companies) was selected,and the relationship between sales (in hundreds of thousands of dollars) and profits (in hundreds of thousands of dollars) was investigated by regression.The following results were obtained from statistical software. Suppose the researchers conducting this study wish to estimate the profits (in hundreds of thousands of dollars) for companies that had sales (in hundreds of thousands of dollars) of 500.The following results were obtained from statistical software. If the researchers wish to estimate the profits for a particular company that had sales of 500,what would be a 95% prediction interval for the profits?

• A)(-1066.4,805.6)
• B)(-248.5,-12.3)
• C)-130.4 ± 59.3
• D)500 ± 59.3

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Definitions:

Sender

The individual or entity that initiates a message or communication, intending to convey information to a receiver.

Receiver

The individual or entity that obtains or is intended to obtain the content of a message from a sender, completing the communication process.

Nonverbal Communication

The transmission of information or feelings without the use of spoken words, through gestures, facial expressions, and body language.

Feedback-seeking

The behavior of actively seeking information about one's performance, behavior, or the impact of one's actions on others.