4,034.06 ,5,965.94 are confidence interval for the population average wages at the factory.
What is confidence interval estimation?
Your estimate's mean plus and minus the range of that estimate's fluctuation is called a confidence interval.
If you repeat your test, you can expect your estimate to fall between these numbers with a reasonable degree of certainty. Another term for probability in statistics is confidence.
The formula for confidence interval estimation is:
μ = M ± Z(sM)
where:
M = sample mean
Z = Z statistic determined by confidence level
sM = standard error = √(s2/n)
M = 50000
Z = 2.58
sM = √(30002/64) = 375
μ = M ± Z(sM)
μ = 50000 ± 2.58*375
μ = 50000 ± 965.94
μ = 4,034.06 ,5,965.94
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Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
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Answer:
True statements are:
C. The water level decreased by \abs{-12} inches.
E. The water level experienced a change of 12 inches.
Step-by-step explanation:
A change in the water level of a swimming pool is recorded a -12 inches.
Now, from the above statements, we have to choose options statements that are true.
A. The water level increased by 12 inches. This is false.
B. The water level increased by \abs{-12} inches. This is also false.
C. The water level decreased by \abs{-12} inches. This is a true statement.
D. The water level has a height of -12 inches. This is again a false statement.
E. The water level experienced a change of 12 inches. This is a true statement. (Answer)
< makes it a true statement