One of the questions on a survey asked adults a series of questions on attitudes toward automation. The results showed that 2,971 out of 4,135 respondents are worried about a future in which robots and computers can do many human jobs; 2,778 are worried about the development of algorithms that can evaluate and hire job candidates; and 2,238 are worried about the development of driverless vehicles. (Round your answers to four decimal places.) (a) Develop a point estimate of the proportion of respondents who are worried about a future in which robots and computer can do many human jobs.   (b) Develop a point estimate of the proportion of respondents who are worried that the development of algorithms that can evaluate and hire job candidates.   (c) Develop a point estimate of the proportion of respondents who are worried about the development of driverless vehicles.

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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.