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Xelga [282]
2 years ago
15

Complete the inequality statement. 0.83 ___ 8.3%

Mathematics
2 answers:
Vlad [161]2 years ago
7 0
8.3% is the correct answer to this question.

Hope this helps and good luck!
wel2 years ago
6 0

Answer:

0.83 = 8.3%

Step-by-step explanation:

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The answer to this question has to be 8
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A random sample of 49 statistics examinations was taken. the average score, in the sample, was 84 with a variance of 12.25. the
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Since in this case we are only using the variance of the sample and not the variance of the real population, therefore we use the t statistic. The formula for the confidence interval is:

<span>CI = X ± t * s / sqrt(n)                      ---> 1</span>

Where,

X = the sample mean = 84

t = the t score which is obtained in the standard distribution tables at 95% confidence level

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From the table at 95% confidence interval and degrees of freedom of 48 (DOF = n -1), the value of t is around:

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Therefore substituting the given values to equation 1:

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CI = 84 ± 2.94

CI = 81.06, 86.94

 

<span>Therefore at 95% confidence level, the scores is from 81 to 87.</span>

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3 years ago
The school band is having a car wash to raise money to purchase new uniforms if they charge $4 per car,how many cars must band m
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Answer:52

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2 years ago
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B                                                                                          B               B

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