You are traveling to chicago for a job interview. you leave toledo, ohio, at 5: 45 a. m. and arrive in elkhart, indiana, at 8: 15 a. m.. the distance from toledo to elkhart is 136 miles; the distance from toledo to chicago is 244 miles. the speed limit is 65 mph. what is the minimum speed you must maintain in order to arrive in chicago before 10: 30 a. m.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?