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klemol [59]
3 years ago
10

samuel used 1/5 of an ounce of butter to make 1/15 of a pound if jelly, how many ounces of butter are needed to make a pound of

jelly?
Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

Answer: 3 ounces of nuts

(1/4) / (1/12) = x / 1 cross multiply

1/4 = 1/12 x                divide both sides by 1/12

x =1/4 / 1/12

x =1/4 x 12/1

x =12/4

x = 3 ounces of nuts.  

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When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps andfound that 1304 of them were not pumpi
elena-14-01-66 [18.8K]

Answer:

The p-value of the test statistic from the standard normal table is 0.0017 which is less than the level of significance therefore, the null hypothesis would be rejected and it can be concluded that there is sufficient evidence to support the claim that less than 20% of the pumps are inaccurate.

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Here, 1304 gas pumps were not pumping accurately and 5689 pumps were accurate.

x = 1304, n = 1304 + 5689 = 6993

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The sample proportion of pump which is not pumping accurately can be calculated as,

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The one-sample proportion Z test will be used.

The test statistic value can be obtained as:

Z=\frac{\hat{p}-P}{\sqrt{\frac{P(1-P))}{n}}}\\\\Z=\frac{0.186-0.20}{6993}\\\\Z=-2.927

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while taking attendance Mrs.Lee noticed 2 out of 25 students were absent. What percent of students were absent?
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You download music for 1.99 per song(s) and spend a total of 15.92
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Read 2 more answers
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