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Fofino [41]
3 years ago
13

jennifer had 3/5 of a gallon of liquid shampoo and divided it evenly among 4 other bottles. How many gallons did she put into ea

ch bottle
Mathematics
1 answer:
kirill [66]3 years ago
6 0
If the 3/5 was a whole number, it would all be simple. We would just put the number above 4 and divide. Easy, right?

Well, you do basically the same thing. Since having fractions over fractions confuse me, I'm going to put 3/5 into a decimal.
3/5=6/10=0.6

Now, I put that over 4, because there are 4 bottles.
0.6/4=6/40=3/20

She put 3/20 gallons into each bottle. Hope this helped!
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Confidence interval = (4.61972, 25.46428)

Margin of Error = 3.9078675

Step-by-step explanation:

Given that :

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Last year:

Mean (μ2) = 48.958

Standard deviation (s2) = 15.4

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99% confidence interval estimate of the difference μ1−μ2

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(μ1−μ2) ± t0.01,27 * (√s1²/n1 + s2²/n2)

t0.01, 27 = 2.770683 (t value calculator)

√s1²/n1 + s2²/n2 = √13.8^2/28 + 15.4^2/28 = 3.9078675

(64 - 48.958) ± 2.667(3.9078675)

15.042 ± 10.42228

(15.042 - 10.42228), (15.042 + 10.42228)

(4.61972, 25.46428)

The margin of error :

√(s1²/n1) + (s2²/n2)

√(13.8^2/28) + (15.4^2/28)

√(6.8014285 + 8.47)

√15.2714285

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