A similar survey of the student population 10 years ago found that a coffee shop was preferred by 20% of the students, and pizza and hamburger were each preferred by 40% of the students. Do the data indicate a significant change in preferences during the past 10 years (10 points total)? HINT: Notice that now you are given 'p', which you can use to calculate your expected frequencies. State the null hypothesis (2 points): Expected frequencies; ROUND TO THE NEAREST WHOLE NUMBER (2 points) Coffee: Pizza: Hamburger: Chi-squared value (2 points): df: Critical Chi-squared value (2 points): Are there significant preferences (i.e., should you reject the null)? (2 points): 3