8. Use the information below about an example company to calculate the financial ratios below.
1 answer:
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Answer:
Follow the followings steps to draw a quadrilateral with 4 unequal sides:
Step 1 : Draw line of length 10cm.
Step 2 : Construct 90° angle on with A as vertex and mark an arc of 5 cm on new arm of right angle. That's Point D.
Step 3 : Again Construct 90° angle on with D as vertex.
Step 4 : Mark an arc of length 6 cm on arm of 2nd right angle. Mark that point as C.
Step 5 : To complete the Quadrilateral, Join Point C and B.
A Quadrilateral (Specially mentioned Trapezoid) ABCD with four unequal side is constructed.
Answer:
It is not reasonable that the state education department claims the percentage for the entire state is 73%.
Step-by-step explanation:
We are given that 191 of the 288 high school students surveyed at a local school said they went outside more during school hours as elementary school students than they do now as high school students.
Firstly, the pivotal quantity for finding the confidence interval for the population proportion is given by;
P.Q. = ~ N(0,1)
where, = sample proportion of high school students who went outside more during school hours as elementary school students than they do now as high school students =
= 0.66
n = sample of high school students = 288
p = population percentage for the entire state
<em> Here for constructing a 90% confidence interval we have used a One-sample z-test for proportions. </em>
<em> </em>
The margin of error is given by;
M.E. =
=
M.E. = 0.056 or 5.6%
So, the confidence interval so formed =
= []
= [0.604, 0.716]
Since the above interval does not include 0.73 or the population proportion of 73% falls outside the above interval. So, it is not reasonable that the state education department claims the percentage for the entire state is 73%.