n the past, it was believed that 40% of women felt that men are basically selfish and self-centered. It is now claimed that this proportion has increased. A sample of 3,000 women shows that 1,260 agree with this statement. Can the statistician conclude that more than 40% of women felt that men are basically selfish and self-centered? Use ά = 0.05.

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.