A certain researcher thinks that the proportion of women who say that female bosses are harshly critical is greater than the proportion of men.
In a random sample of 200 women, 27% said that female bosses are harshly critical.
In a random sample of 220 men, 25% said that female bosses are harshly critical.
At the 0.05 significance level, is there sufficient evidence to support the claim that the proportion of women saying female bosses are harshly critical is higher than the proportion of men saying female bosses are harshly critical? Show all work and justify your answer.