Answer:
B), x=-1, y=-2, z=1.
Step-by-step explanation:
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
Learn more about confidence interval
brainly.com/question/24131141
#SPJ1
Answer:
2,170,000
Step-by-step explanation:
used this https://www.calculatorsoup.com/calculators/math/roundingnumbers.php
:)
(5/6) / (7/10)
when dividing with fractions, flip what u r dividing by, then multiply
5/6 * 10/7 = 25/21 or 1 4/21 <==
