I need help with a maths question please answer only if you know and not links
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Answer: Length = 642 cm
Concept:
Here, we need to know the idea of how to find the area of a rectangle.
Area (rectangle) = l × w
l = length
w = width
Solve:
<u>Given information</u>
A = 24396 cm²
w = 38 cm
<u>Given expression</u>
A = l × w
<u>Substitute values into the expression</u>
24396 = l × (38)
<u>Divide both sides by 38</u>
24396 / 38 = l × 38 / 38
Hope this helps!! :)
Please let me know if you have any questions
Answer:
The value is
Step-by-step explanation:
From the question we are told that
The sample mean is
The sample size is n = 25
The standard deviation is
Given that the sample size is not large enough i.e n< 30 we will make use of the student t distribution table
From the question we are told the confidence level is 99.7% , hence the level of significance is
=>
Generally the degree of freedom is
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Generally from the student t distribution table the critical value of at a degree of freedom of
is
Generally the margin of error is mathematically represented as
=>
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Gnerally the upper control chart limit for 99.7% confidence is mathematically represented as
=>
=>