Random samples of resting heart rates are taken from two groups. population 1 exercises regularly, and population 2 does not. the data from these two samples is given below: population 1: 66, 67, 71, 67, 68, 73, 68 population 2: 70, 71, 71, 69, 74, 68, 68, 73 is there evidence, at an α=0.005 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? (use the conservative method for computing degrees of freedom). carry out an appropriate hypothesis test, filling in the information requested.

two? xd

step-by-step explanation:

actually what is a question i don't understand

x=-2

step-by-step explanation:

i began by flipping the problem to give me x= on the left (keeps it clearer for me).   so my problem simply became 10x-3=4x-6.  

1)   subtract 4x from the right side, which equals 0.   you do the same to the left of the equal as the right; therefore, subtract 4x from 10x, leaving 6x on the left.

              10x-3=4x-6   :   4x-4x on the right leaves only the -6        

2)             6x-3= 0-6 :    

                6x+3=   -6

3) divide