A company claims that 70% of its customers are satisfied with its products and services. To test this claim, a researcher randomly selects a sample of 200 customers and finds that 198 of them report being satisfied. They want to conduct a one-proportion z-test to determine whether the sample proportion of satisfied customers is significantly different from the claimed proportion of 70%. Is the Normal condition for the test satisfied?




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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.