Tarush is a landscape architect. For his first public project he is asked to create a small scale drawing of a garden to be plac
ed in the corner of a city park. The garden is a right triangle with base 25\text{ m}25 m25, start text, space, m, end text and height 30\text{ m}30 m30, start text, space, m, end text. Draw the garden such that 111 unit on the grid below represents 5\text{ m}5 m5, start text, space, m, end text.
1 answer:
Answer: Check the explanation for the solution.
Step-by-step explanation:
Given that the garden is a right triangle with base 25m start and height 30 m
The length of the hypothenus can be achieved by using pythagorean theorem.
Please find the attached file for the diagram.
I made a large unit for the sake of clarity.
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Answer:
The 90% confidence interval using Student's t-distribution is (9.22, 11.61).
Step-by-step explanation:
Since we know the sample is not big enough to use a z-distribution, we use student's t-distribution instead.
The formula to calculate the confidence interval is given by:
Where:
is the sample's mean,
is t-score with n-1 degrees of freedom,
is the standard error,
is the sample's size.
This part of the equation is called margin of error:
We know that:
degrees of freedom
Replacing in the formula with the corresponding values we obtain the confidence interval: