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A large city wants to estimate the proportion of its residents that use public transportation at least once a year. From a random sample of 240 residents they find that 123 use public transportation at least once a year. Find a 90% confidence interval for the proportion of the city's residents that use public transportation at least once a year. Write your answers on the answer sheet in the space provided. (a) Verify whether the conditions are met for constructing a confidence interval (even if one of the conditions is not met, continue with constructing the confidence interval). (b) Calculate the confidence interval. Make sure to show all of your work, including writing out any commands that you typed into RStudio. (c) Write a sentence interpreting the confidence interval in the context of the