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Salsk061 [2.6K]
3 years ago
9

A blue bag has 2 times as many marbles as a red bag. The blue bag has 6 marbles.

Mathematics
1 answer:
avanturin [10]3 years ago
5 0

Answer:

3

Step-by-step explanation:

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Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul
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Answer:

Test statistic = 1.3471

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Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 4

Sample mean, \bar{x} = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

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Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{4.8 - 4}{\frac{2.3}{\sqrt{15}} } = 1.3471

Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

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The secret number has 5 digits: 3, 9, 1, 6, 2
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Step-by-step explanation:

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