The lowest common denominator is 21
Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-
, where
is the sample mean and ME is the margin of error .
Given : The sample mean : 
Margin of error : 
Then , the range of values (confidence interval) likely to contain the true value of the population parameter will be :-

Hence, the range of values likely to contain the true value of the population parameter = 
Answer:
The answer is negative 12
Step-by-step explanation:



Answer:
a) answered in the image attached
b) y=2.75x+3.50
c) y=2.75(5)+3.50
y=17.25
Answer 1:16 is the answer