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Elena L [17]
3 years ago
5

Solution to -5 1/6 + 5 2/3

Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0

Answer:

\frac{1}{2}

Step-by-step explanation:

To start when you're adding or subtracting fractions you want to find a common denominator. in this example it would be 6, so you would change the equation to -5\frac{1}{6} +5\frac{4}{6} then you would add the whole numbers and the top of the fractions to get \frac{3}{6} which can be simplified to \frac{1}{2}

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Answer:

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Step-by-step explanation:

Hello!

Hypothesis to test:

H₀:ρ₁-ρ₂=0

H₁:ρ₁-ρ₂>0

The statistic to use to test the difference between two population proportions is the approximation of Z

Z=<u>     (^ρ₁-^ρ₂)-(ρ₁-ρ₂)     </u>   ≈N(0;1)

   √ (<u>^ρ₁(1-^ρ₁))/n₁)+(^ρ₂(1-^ρ₂)/n₂))</u>

                   

Z=<u>                    (0.28-0.15)-0                    </u>= 1.79

   √ (<u>0.28(1-0.28)/200)+(0.15(1-0.15)/300)</u>

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Remember: The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

P(Z>1.79)= 0.0367

Conclusion:

Comparing the p-value against the significance level, you can decide to reject the null hypothesis.

I hope you have a SUPER day!

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least to greatest: 100,500 ; 324,000 ; 655,980 ; 900,378

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