Resolver 3 -2x=12 -6x
2 answers:
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we have chicken broth in cylindrical can.
we have given the height radius of cylindrical can.
h=10cm r=10 cm .
and she have 6cm broth height in the tin that means she had used 4 cm of height of broth .
now we need to find volume of two cylinder with h=10 cm and 6cm
and we need to find the difference between the volumes .
volume1=
volume 2=
volume used =volume 1-volume2=3140-1884=1256cm^3 is used
Answer: Margin of error = 6.58
Confidence interval = (26.91, 40.08)
Step-by-step explanation:
Since we have given that
Sample size n = 8
Sample mean = 33.5 minutes
Population standard deviation = 9.5 minutes
At 95% confidence interval,
α = 0.05
t = 1.96
So, Margin of error is given by
Confidence interval would be
Lower limit:
Upper limit:
Hence, the interval would be (26.91, 40.08)
But at standard deviation 7.2 minutes, the confidence interval was (27.5, 39.5)
Confidence interval using the standard normal distribution is wider than the confidence interval using t distribution.