The following random sample was selected from a normal distribution: 5 20 18 3 10 2 6 9 19 13
a) Construct a 90% confidence interval for the population mean μ: ≤ μ ≤
b) Construct a 95% confidence interval for the population mean μ: ≤ μ ≤

Sry i don't know the answer but are u from kastner?

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this

12x+8-x=12x-x+8=11x+8=11