Answer:
Two-Factor ANOVA with replication
Step-by-step explanation:
Types of detergent used ( A,B,C ) = 3
Length of time for the washing cycle : A = 18 mins, B = 20 mins, C = 22 mins
number of laundry loads = 18
significance level = 5%
The alternative hypothesis for testing the interaction is a Two-Factor ANOVA with replication this is because the factors that have variations are the : The type of detergent and the length of time for a washing cycle while the load is constant for all.
Answer:
= 7
Step-by-step explanation:

Percent increase = (new number - original number) / original number...* 100
= (39.99 - 29.62) / 29.62....* 100
= 10.37 / 29.62....* 100
= 0.35 * 100
= 35% markup <===
Step-by-step explanation:
(3х - 7y = 13)×-2
6х + y = 7
-6х +14y = -26
6х + y = 7
15y=-19
y=-19÷15=-1.26
6x+-1.26=7
6x=7+1.26
6x=8.26
x=1.37
7x - 2x - 10 = 25x + 45
5x - 10 = 25x + 45
5x - 25x = 45 + 10
- 20x = 55
x = -55/20 = -11/4