Aweb page design firm has two designs for an online hardware store. to determine which is the more effective design, the firm uses one page from 1 : 00 pm until 6 : 00 pm and a second page from 6 : 00 pm until 11 : 00 pm. for each visit, the firm records the visitor's rating on the layout and the number of items viewed. complete parts (a) through (c) below. (a) what is the explanatory variable in this study? is it qualitative or quantitative? a. the explanatory variable is the number of items viewed. this explanatory variable is quantitative. b. the explanatory variable is the web page design. the explanatory variable is qualitative. c. the explanatory variable is the time of day. this explanatory variable is qualitative.

A. The explanatory variable is the number of items viewed. This explanatory variable is quantitative.

Step-by-step explanation:

The variable that we can change is called the Explanatory Variable.

The Response variable depends upon the explanatory variable, as we change the value of the explanatory variable the value of the response variable is also get changed.

When the data is in the form of numeric, it is called quantitative.

When the data is not in the numeric form, it is called qualitative.

Here, we have to determine which web page design is better and it depends on the number of the item viewed by a visitor to that site.

Thus, the Explanatory variable is the "number of items viewed".

and the number of items viewed is numeric data, so it is quantitative.

Hence, option (A) is correct.