Answer:
c) (26.295, 28.705)
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 27.5 - 1.205 = 26.295 mi/gallon
The upper end of the interval is the sample mean added to M. So it is 27.5 + 1.205 = 28.705 mi/gallon
So the correct answer is:
c) (26.295, 28.705)
Answer:16
Step-by-step explanation:
x-9=7
16-9=7
7=7
x=16
240.70 x 4 = 962.80
560 x 4 = 2240
28 x 4 = 116
962.80 + 2240 + 116 = 3314.80
This is the answer and that is how we get the answer
Answer: y=2/3x+3
*Remember the original equation in slope-intercept form*
y=mx+b
*label that with what each letter stands for*
m=slope/rate of change
x=variable
b=y-intercept
*Substitute this information into the equation
y=2/3x+3
Hope this helps comment below for more questions :)
Answer:
She would have to do a chore 11.25 times
Step-by-step explanation:
well first you would divide 1.20 by 13.50 and get 11.25 and then add the $3 to it and get 14.25 and that would be enough money for the game
please mark brainliest
