For 6 consecutive days, alejandro studied for 5 minutes more each day than he did the previous day. which best represents the change in the amount of time that alejandro studied on the first day to the amount of time he studied on the last day?
a.–30 minutes
b.–11 minutes
c.11 minutes
d.30 minutes

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?