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zmey [24]
3 years ago
12

Describe the relationship between the values of the digits in the number 9999999.

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

They are all the same number

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Blues varied directly as greens and inversely as whites squared. If there were 3 greens when there were 4 blues and 2 whites, ho
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that is the answer

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In a quality control test of parts manufactured at Dabco Corporation, an engineer sampled parts produced on the first, second, a
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Answer:

p value = 0.0174

Conclusion : we reject the null hypothesis

Step-by-step explanation:

Thinking step:

We need to perform a test to determine if the proportion of the good parts is the same for all three shifts at a significance level of \alpha = 0.05

Assumption : all the population for each or the three shifts is not equal.

Calculation:

Let p₁ be the sample of the first shift

     p₂ be the sample of the second shift

     p₃ be the sample of the third shift

According to the null hypothesis

H₀ = p₁ = p₂ = p₃

In other words, all the population sample proportions are equal.

Alternatively, we can assume that the three shift are not equal p₁ ≠ p₂ ≠ p₃

Tabulating and performing the \chi² test gives 8.10

degrees of freedom:

df = k - 1

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Thus the degree of freedom is 2

Solving using the MINITAB software gives: p = 0.174

The solution shows that the p value < level of significance, then p-value lies in the range 0.0174≤\alpha≤0.05

Therefore, we reject the null hypothesis based on the fact that the three shifts are not equal.

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