Doug buys a pumpkin every year. the first time he bought a pumpkin, at year 0, it cost $2.60. he notices the price is getting more expensive, at a rate of 7% per year. doug sketches a graph of the situation. which statements are true? select each correct answer. the graph decreases from left to right. the graph has an x-intercept and a y-intercept. the graph has a y-intercept only. the point (0, 2.60) is on the graph. the point (2.60, 0) is on the graph. the graph increases from left to right.

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?