Could you help me with this question
1 answer:
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Answer:
The actual height is 150ft
Step-by-step explanation:
Given
Required
Determine the actual height
Substitute 60ft for width in:
Express as fraction
Make height the subject
Answer:
The test statistic for this test is 3.82.
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis,
is the standard deviation of the population and n is the size of the sample.
In this question:
So
The test statistic for this test is 3.82.
Answer:
No
Step-by-step explanation:
For x and y to have a proportional relationship, then
the ratio of k = must be equal for all points
(2, 5) → k = = 2.5
(3, 7.5) → k = = 2.5
(5, 12.5) → k = = 2.5
(18, 8) → k = = 2.25 ≠ 2.5
k is not equal for all values , hence no proportional relationship exists