Shane has conducted an observational study to learn about how different media messages affect toy purchases. Shane surveyed 250 shoppers at the mall and found that 70% of the shoppers were shopping for a specific item they saw advertised on the internet.What conclusion can Shane make from his study?

Answer and Explanation:Given : Shane has conducted an observational study to learn about how different media messages affect toy purchases. Shane surveyed 250 shoppers at the mall and found that 70% of the shoppers were shopping for a specific item they saw advertised on the internet.To find : What conclusion can Shane make from his study?Solution : According to Shane study,he surveyed 250 shoppers at the mall and found that 70% of the shoppers were shopping for a specific item they saw advertised on the internet.i.e. number of people were [tex]70\%\text{ of } 250[/tex][tex]\frac{70}{100}\times 250=175[/tex]n=250-175=75Out of 250 shoppers 75 shoppers were shopping for a specific item they saw advertised on the internet.The conclusion can Shane make from his study,There may be a link between advertisements on the internet and toy purchases as an internet advertisement causes shoppers to buy specific toys, but he cannot draw a cause-and-effect conclusion from an observational study.