Pls, 30 pts (explanation should be clear)

the local meteorologist claims that the temperature is going to steadily drop over the next 4 hours. if the temperature changes by the same amount each hour, and it changes by a total of -28°f, how much will it change each hour? explain how you got your answer in two or more complete sentences.

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?