Answer:

Step-by-step explanation:
Given


Required
Find p, when 
We have:

Express as equation

Make k the subject

When: 


When
, we have:




I use a pretty common study concept. When i learn something new,I like to take notes on the subject in different color pens and markers, To put it simple, I like to write in lots of color. In a way,This helps to print it in my memory easier
Answer:
5:2
Step-by-step explanation:
Given:
Machine dispenser
Average = 600 mL soda to every glass
Volumes recorded in one day (random sampling)
600.15
599.92
599.85
599.92
599.81
600.14
600.04
599.98
Average = (sum of the volumes)/(number of readings)
= 4799.81/8
Average = 599.976 mL
Therefore there is sufficient evidence to conclude that the average volume of soda dispenser is different from 600 mL.