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Maru [420]
3 years ago
11

Solve the inequality. 2(b – 8) > 12

Mathematics
2 answers:
kobusy [5.1K]3 years ago
6 0
We can solve this this as if the greater than sign were an equal sign. we'll solve for b.
1. use the distributive property: 2(b-8) = 2b-16
2. add 16 to both sides: 2b-16>12 = 2b>28
3. divide both sides by 2 to get b isolated: 2b>28 = b>14
therefore, your answer it b > 14
sashaice [31]3 years ago
5 0
2b-16>12 add the 16 2b>28 then divide by 2
 b>14


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Do one of the​ following, as appropriate.​ (a) Find the critical value z Subscript alpha divided by 2​, ​(b) find the critical v
aliya0001 [1]

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t=\pm 2.95

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Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The t distribution or Student’s t-distribution is a "probability distribution that is used to estimate population parameters when the sample size is small (n<30) or when the population variance is unknown".

The shape of the t distribution is determined by its degrees of freedom and when the degrees of freedom increase the t distirbution becomes a normal distribution approximately.  

Data given

Confidence =0.99 or 99%

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n =16 represent the sample size

We don't know the population deviation \sigma

Solution for the problem

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df=n-1=16-1=15

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