Sound intensity of certain Vacuum Cleaner is a random variable having a normal distribution with a mean of 75 dB and a standard deviation (population) of 3 db. Using p-value approach, test the null hypothesis µ = 75 against the alternative hypothesis µ ≠ 75.

The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

What are two numbers that have a sum of 15