Exhibit 9-9
the Sales of a Grocery Store Had an Average

question 77

Multiple Choice

Exhibit 9-9
The sales of a grocery store had an average of $8,000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 64 days of sales was selected. It was found that the average was $8,300 per day. From past information, it is known that the standard deviation of the population is $1,200.
-Refer to Exhibit 9-9. The correct null hypothesis for this problem is

• A)\(\mu\) < 8000
• B)\(\mu\) > 8000
• C)\(\mu\) = 8000
• D)\(\mu\)> 8250

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Definitions:

AI

Artificial Intelligence refers to the development of computer systems that can mimic human intelligence, including learning, reasoning, and self-correction.

Shopping Bot

A software application that automates searching the internet for the best prices and deals on products.

Predictive Agent

A software agent or algorithm that uses data analytics to predict future events or trends.

Buyer Agent

A person or software that assists individuals or organizations in purchasing products or services, often by negotiating prices, terms, and conditions.