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4 years ago

PLEASE HELP WITH THIS QQUESTION! 35 POINTS!!!!!!!!!!!

Mathematics

2 answers:

Ivenika [448]4 years ago

7 0

Yes; 23+147 = 170
No: 112+48 = 160

Since its asking for a ratio of those who have to those who haven't, the ratio should be-

170 ; 160

Simplified:
34 ; 32 ( divided by 5 )

aev [14]4 years ago

6 0

A ratio compares two numbers or two quantities that are measured with the same unit. ... When a ratio is written in fraction form, the fraction should be simplified. If it is an improper fraction, we do not change it to a mixed number.

34 and 32

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4 years ago

A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of

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Answer:

$0.1546\leq \widehat{p}\leq 0.3513$

Step-by-step explanation:

The firm tests 75 parts, and finds that 0.25 of them are notusable

n = 75

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$=\widehat{p}-Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}\leq \widehat{p}\leq \widehat{p}+Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}$

$=0.253-(1.96)\sqrt{\frac{0.253(1-0.253)}{75}}\leq \widehat{p}\leq0.253+(1.96)\sqrt{\frac{0.253(1-0.253}{75}}$

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