Answer:
For a rectangular prism-like swimming pool: .
when
,
and
.
Step-by-step explanation:
Let assume that swimming pool has a rectangular base and depth is the same at any point at the bottom. In addition, let and
be the width and length of the swimming pool. Then, the volume needed to fill the swimming pool is:
, where
is the depth of the pool.
Let be ,
and
. The volume of the swimming pool is:
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
=>
=>