Line A is represented by the equation given below:
1 answer:
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Answer:
(Approximation to the nearest thousandth)
Step-by-step explanation:
The area of a cylinder can be determined by the formula:
(We know that the radius, r, is 2m, and the height, h, is 5m, so we can substitute them into the formula to calculate the volume of this cylindrical tank)
(Simplify)
(Approximation to the nearest thousandth)
Answer:
The lower limit is 75.04
The upper limit is 78.96
Step-by-step explanation:
From the question we are told that
The sample size is
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as
The critical value for obtained from the normal distribution table is
Generally the margin of error is mathematically represented as
=>
=>
The 95% confidence interval is mathematically represented as
=>
=>