Write the equation of a cosine function that has been vertically stretched by a factor of 20, reflected in the x-axis, horizontally compressed by a factor of 1
/12, moved 3π units left and 14 units up.

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 .