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Klio2033 [76]
3 years ago
7

A café uses 27.5 quarts of milk a day. If

Mathematics
2 answers:
ankoles [38]3 years ago
8 0

Answer:

15

Step-by-step explanation:

27.5 x 6

27.5 being the amount of milk (in quarts) used per day, the 6 being the amount of days.

27.5 x 6 = 165. We then subtract the 165 from our 180 from the start amount of milk we had. 180-165 equals 15.

Hope this helps you out!

Pachacha [2.7K]3 years ago
3 0

Answer:

15 quarts

Step-by-step explanation:

the amount of milk used in six days: 27.5*6= 165 quarts

the amount left after six days : 180-165=15 quarts

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Answer:

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Step-by-step explanation:

Solution

Recall that,

The total number of sample 1 (n1) = 1000

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α = 0.05

We are interested in testing the hypothesis.

The  hypothesis (Null) ....>  H₀ : p₁ = p₂

Alternate hypothesis------ > H₁ : p₁ > p₂

Thus,

P = X₁ + X₂/ n₁ + n₂

P =300 + 500/1000 +2000

P =800/3000

=0.2667

Now,

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Z₀ =  0.3 - 0.25/√0.2667  (1 - 0.2667) (1/1000 + 1/2000)

Z₀ = 0.4999999999999999/√ 0.2667 (0.7333000000000001) (0.001 +0.0005)

Then,

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Z₀ = 2.9193

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zα/2 = z0.05/2 =z0.025

zα/2 = 1.6448536269514722

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Decision Rule: Reject the null hypothesis if the statistic value test is higher than the critical value 1.6448536269514722

The statistic value, 2.9193 is greater than the critical value 1.6448536269514722,  then we will reject the null hypothesis.

Therefore, the proportion of smokers was higher in 1990 than in 2000

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