an article in Forbes magazine reported that 73% of fortune 500 companies have Twitter accounts. A economist thinks the percentage is higher at technology companies .she sample 70 technology companies and finds that 55 of them have Twitter accounts .can she conclude that more than 73% of technology companies have twitter accounts? Use the a=.05 level of significance

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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.