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tamaranim1 [39]
3 years ago
13

Can someone help me with this math problem?

Mathematics
1 answer:
ANEK [815]3 years ago
6 0
Do 12 2/3+10 2/3 which is 23 1/3 than subtract 8 2/3 for your answer.
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A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation o
olasank [31]

Answer:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3    

Step-by-step explanation:

Information given

\bar X=9.41 represent the sample mean

s=0.24 represent the sample standard deviation

n=81 sample size  

\mu_o =9.33 represent the value to verify

\alpha=0.05 represent the significance level

t would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean is higher than 9.33, the system of hypothesis would be:  

Null hypothesis:\mu \leq 9.33  

Alternative hypothesis:\mu > 9.33  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3    

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Answer:

Step-by-step explanation:

Please find the attached excel file.

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How do you factor 3х2-8x?
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Answer: 6-8x

Step-by-step explanation:

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Robert earns $8.75 per hour. If he works 15.3 hours each week, how much money will Robert earn in one year? (1 year=52 weeks
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