The table lists data on each of 8 items advertised by an Internet reta

The table lists data on each of 8 items advertised by an Internet retailer on a single web page as part of a one-day sale. The term customer refers to anyone who viewed that web page on that day. For each item, the page placement denotes the quadrant of the page on which the item's advertisement appeared; the mean eye time is the average (arithmetic mean) number of seconds that each customer spent viewing the item's advertisement; the info click percentage is the percentage of all customers who clicked a button for more information; and the sales rank is the item's ranking based on sales, where a lesser number denotes greater sales.

For each of the following statements about this data, select Yes if the statement can be inferred from the given information. Otherwise, select No.

Infoclick percentage is directly proportional to mean eye time.

When values are "directly proportional," the ratio of the values is constant. In other words, when one value increases or decreases, the other value increases or decreases proportionally. In simple terms, when two numbers are directly proportional, when one increases the other increases as well.

So, it's likely that we can tell whether infoclick percentage is directly proportional to mean eye time by simply checking to see whether the two values increase together.

To do so, we can sort the table on Mean eye time to line up the mean eye time values from least to greatest and then see whether the infoclick values also go from least to greatest.

Doing so, we see that, when Mean Eye Time is sorted from least to greatest, Infoclick percentage is not lined up from least to greatest. For example, in the Infoclick percentage column, 67 comes before four lower values, 22, 18, 35, and 52, and 22 comes before 18.

Select No.

The 2 items having the greatest sales were advertised in the upper part of the web page.

To find this answer, we can first find the 2 items with the greatest sales by sorting by Sales rank.

We also must note what the text says about sales rank:

the sales rank is the item's ranking based on sales, where a lesser number denotes greater sales

Doing so we see that the items D and A are the items ranked 1 and 2 and therefore are the items having the greatest sales.

Looking in the Page placement column, we see that D is placed upper right and A is placed upper left.

So, these 2 items were advertised in the upper part of the page.

Select Yes.

Mean eye time was greatest for the item having the greatest infoclick percentage and least for the item having the least infoclick percentage.

To find this answer, we can sort on Infoclick percentage to identify the items with the least and greatest infoclick percentage and then see whether those items are also those with the least and greatest mean eye time respectively.

Sorting on Inforclick percentage, we see that the items with the least and greatest infoclick percentages are G and E.

Then, sorting on Mean eye time, we see that the items with the least and greatest mean eyes times are also G and E.

So, we see that the the items with the greatest and least Infoclick percentages and the items with the greatest and least mean eyes times are the same items.

Select Yes.

Correct Answer