IDNLearn.com offers expert insights and community wisdom to answer your queries. Find the information you need quickly and easily with our reliable and thorough Q&A platform.

Select the correct answer from the drop-down menu. An energy drink company claims that its product increases students' memory levels. To support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. The missing component in this study is a .