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

question 113

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 value of the test statistic is

• A)250
• B)8000
• C)8250
• D)2.0

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Definitions:

Ribosomes

Cell organelles that function as the site of protein synthesis, reading the sequence of messenger RNA to create polypeptides and proteins.

Chloroplasts

Organelles found in the cells of green plants and photosynthetic algae, where photosynthesis takes place, converting light energy into chemical energy.

Photosynthesis

The process by which green plants and certain other organisms transform light energy, usually from the sun, into chemical energy stored in glucose.

Rough Endoplasmic Reticulum

A network of membrane-bound tubules and sacs studded with ribosomes, involved in the synthesis and export of proteins.