170 students were asked to randomly pick one of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The number 7 was picked by 53 students.   (a) For the sample, calculate the proportion of students who picked 7. (Round the answer to three decimal places.) (b) Calculate the standard error for this sample proportion. (Round the answer to four decimal places.) (c) Calculate a 90% confidence interval for the population proportion. (Round the answers to three decimal places.)  to  (d) Calculate a 95% confidence interval for the population proportion. (Round the answers to three decimal places.)  to  (e) Calculate a 98% confidence interval for the population proportion. (Round the answers to three decimal

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Q: Use the sample data in Example #1 (picture) and a technology tool to construct 75%, 85%, and 99%…

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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.