Chapter 12, Problem 9PS

What Social media tools do marketers commonly use? A survey by Social Media Examiner of B2B (marketers that focus primarily on attracting business) and B2C marketers (marketers that primarily that target consumers) reported that 267 $\left(\text{81\%}\right)$ of B2B marketers and 295 $\left(\text{44\%}\right)$ of B2C marketers commonly use LinkedIn as a social media tool. The Study also revealed that 149 $\left(\text{45\%}\right)$ of B2B marketers and 308 $\left(\text{46\%}\right)$ of B2C marketers commonly use You Tube as a Social media tool.

Suppose the survey was based on 330 B2B marketers and 670 B2C Marketers.

a. At the 0.05 level of significance, is there evidence of a difference between B2B marketers and B2C marketers in the proportion that commonly use LinkedIn as a social media tool?

b. Find the p-Value in (a) and interpret its value.

c. At the 0.05 of significance, is there evidence of a difference between B2B marketers and B2C marketers in the proportion that commonly use YouTube as a social media tool?

d. Find the p-value in (c) and interpret its value.