=+grew to hurricane strength changed? Here are those fractions for the same periods as those considered in the previous exercise.

1995–2001 2002–2012 0.579, 0.692, 0.429, 0.714, 0.667, 0.571, 0.600 0.333, 0.438, 0.600, 0.556, 0.556, 0.400, 0.500, 0.333, 0.632, 0.333, 0.526

a) Write the null and alternative hypotheses.

b) Are the conditions for hypothesis testing satisfied?

c) If so, test the hypothesis.