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3 years ago

6

Et one factory the ratio of defective bulbs produced to the total light bulbs produced is 3:500. How many light bulbs are expect

ed to be defective when 12,000 are produced?

1 answer:

In-s [12.5K]3 years ago

8 0

The answer is:

3 : 500 = x : 12000

x = (3*12000)/500

x = 36000/500

x = 72

72 light bulbs are expected to be defective when 12000 are produced.

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Answer:

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Answer:

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Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given Mean of the Population (μ) = 8.0

<em>Mean of the sample (x⁻) = 8.25</em>

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<em>Critical value </em>

<em> t₍₇,₀.₀₅₎ = 2.3646</em>

<em>The calculated value t = 1.076 < 2.3646 at 0.05 level of significance</em>

<em>Null hypothesis is accepted</em>

<em>Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0</em>

<em></em>

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