The same poll as in Exercise 9 also asked the questions "Did you use the Internet yesterday?" and "What is your educational level?" Is the response to the question about the internet independent of educational level? The data follow:

a) Under the null hypothesis, what are the expected values?
b) Compute the x2statistic.
c) How many degrees of freedom does it have?
d) Find the P-value.
e) What do you conclude?