3. independent random samples taken at two airport newsstands revealed the following information concerning the amount of money spent per customer. we want to determine if, on average, customers at hartsfield jackson spent more than customers at dallas/fort worth. use the 0.05 level of significance. let atl be population 1. 0 0 0 0

the balance is found at the link

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

9987

step-by-step explanation:

answer

step-by-step explanation: