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3 years ago

A 4-L water filter is used to fill 200 mL cups and three 750 mL drink bottles How much water is left in the water filter

Mathematics

1 answer:

Ierofanga [76]3 years ago

7 0

Answer:

1550 mL

Step-by-step explanation:

Total capacity of water = 4 Litre

4 L = 4 * 1000 mL = 4000 mL

200mL cups filled = 1 ; 200 mL

750mL cups filled = 3 ; 750 * 3 = 2250 mL

Total = (200 + 2250) mL = 2450 mL

Water left in filter :

(4000 - 2450) mL = 1550 mL

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3 years ago

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Step-by-step explanation:

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$p_{0}$ : 0.35

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N is the sample size (300)

putting the numbers in the formula:

z= $\frac{0.46-0.35} }{\frac{0.4770}{\sqrt{300} } }$ = 3.9945

c. Does the z statistic seem like a particularly large or small value?

z-statistics seem a large value, which will cause us to reject the null hypothesis.

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4 years ago