Which number line shows the solution of 4 = 9+ y? +
А
+ + +
7 8 9 10 11 12
+ 삭
B
+
10
9
+
11
12
13
14
с
-6 -5 -4
+
-3
+
-2
-1
D
+
1
+
2
0
+
3
4
5
6

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?