A sample of 20 students was surveyed, and a 90% confidence i…

A sample of 20 students was surveyed, and a 90% confidence interval for the mean daily amount college students spend on coffee was found to be ($3.50, $8.25). Each of the following statements contains a misunderstanding of what this confidence interval represents. Choose one statement, identify the error, and explain why it is incorrect. Additionally, describe how the statement could be corrected. We are 90% confident that all college student coffee purchases per day fall between $3.50 and $8.25. 90% of all college students will spend between $3.50 and $8.25 on coffee each day. We are 90% confident that the average amount spent on coffee by students in this sample was between $3.50 and $8.25.

In a village in rural Malawi, farmers switched from using tr…

In a village in rural Malawi, farmers switched from using traditional seeds to grow maize to a new, improved seed variety adapted to Malawi’s climatic conditions. How does this affect production yield, and how is it represented on an agricultural production function graph?