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pochemuha
4 years ago
15

Solve for x. 4 = log2x

Mathematics
2 answers:
Murrr4er [49]4 years ago
6 0
The answer should be x =3
gtnhenbr [62]4 years ago
3 0
log_2 X=4
This is asking what can you raise 2 to in or order to get 4.
X=2
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A sample of 1500 computer chips revealed that 37% of the chips fail in the first 1000 hours of their use. The company's promotio
andreyandreev [35.5K]

Answer:

z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59  

Step-by-step explanation:

Data given and notation

n=1500 represent the random sample taken

\hat p=0.37 estimated proportion of of chips fail in the first 100 hours

p_o=0.39 is the value that we want to test

\alpha represent the significance level

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that  the actual percentage that fail is different from the stated percentage. Find the value of the test statistic.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59  

3 0
3 years ago
14 miles in 4 hour what is average rate of speed
disa [49]
3.5 mph is the answer
4 0
3 years ago
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Can someone translate these into equations?!?!
Mila [183]

_ ÷ 7=9

_ - 12=0

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3 years ago
Gina has 7 2/6 ft of silver ribbon and 2 4/6 of gold ribbon how much more silver ribbon does Gina have than gold ribbon?
salantis [7]

Answer:

Gina has 5 more feet of silver ribbon than gold

Step-by-step explanation:

7 - 2 =5

7 0
3 years ago
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