Need explanation and answers with minitab instruction and results

People shop for food woth many different critetia oin mind. To some individuals price os the most important factor in food selection. to others, nutrition is the most important factor. and still to others, convenience in preparation is the most important factor. A random sample of 200 grocery shippers results with 84 people who report that nutrition is the most important factor in their food selection. estimate the proportion of all people who "think nutrition first." using a 99% confidence interval.