A sample of 55 Canadian high school students revealed 13% of them have a part-time job. Calculate the margin of error for a 99% confidence interval. Round to 3 decimals. Type your answer. 1 point Assuming you had access to all the required information, could you create a confidence interval for a mean or a proportion in the following scenarios? Confidence Interval for a Mean Confidence Interval for a Proportion No Answers Chosen No Answers Chosen Possible answers Based on a recent poll 32 out of 101 post-secondary students have a part-time job. The city mileage for a new compact car is 9.1 km/L. A cookie manufacturer knows 4% of the cookies in each package will be broken. A chiropractor appointment lasts 30 minutes.1 point To create a confidence interval for the population proportion we would use the point estimate known as p True O False Point An environmental agency is concerned that a large percentage of cars are violating clean air emissions standards. The agency would like to check a sample of vehicles in order to estimate that percentage with a margin of error of 3% and 95% confidence. An initial study of 100 cars revealed 15% of cars had faulty emission systems. How many additional vehicles should be sampled for a full investigation? Type your answer. 1 point A random sample of 37 adults living in Hamilton determined their mean work commute time to be 53 minutes. The population standard deviation is 14 minutes. Assume a Normal Distribution applies. Calculate a 99% confidence interval for the mean work commute time of a Hamilton adult. 49.21 minutes to 56.79 minutes OOO 32.05 minutes to 41.95 minutes 47.07 minutes to 58.93 minutes