The value of 27 is within 95% confidence interval because it is greater than 26.7 and less than 29.3.
<h3>What is a confidence interval?</h3>
In statistics, a confidence interval is a range to estimate for unknown terms.
The most common level is the 95% confidence interval.
It can be calculated by
CI = Mean ± margin of error.
α = 1 - 0.95 = 0.05
α/2 = 0.025
z(0.025) = 1.96
We need to find the 
= 0.645
So,
= 1.96 × 0.645
CI =1.26
C.I= 28±1.2652
Upper limit = 28+1.2652
=29.2625
Lower limit =28-1.2652
=26.7348
Hence, The value of 27 is within 95% confidence interval because it is greater than 26.7 and less than 29.3.
Learn more about confidence intervals;
brainly.com/question/12899226
Answer:
7/8
Step-by-step explanation:
If Haley bought 3/8 pounds of mozzarella and 1/2 pound of parmesan cheese we can convert 1/2 to eighths.
1/2 converted to eighths would be 4/8
4/8 + 3/8 = 7/8
She bought 7/8 pounds of cheese.
Answer:
twice
Step-by-step explanation:
y = - 1 is a horizontal line parallel to the x- axis and passing through all points with a y- coordinate of - 1
Drawing this line on the graph, from (0, - 1 ) we can see that it will intersect the graph at 2 places between (0, 0 ) and (2, - 2 ) and between (2, - 2 ) and (4, 0 )
Answer:
The ratio is 
Step-by-step explanation:
We have
Answer:
4%
Step-by-step explanation:
R=INTEREST X 100% / TIME X PRINCIPAL
r=40 x 100=4000
4000/500 x 2=1000
4000/1000=4%
