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riadik2000 [5.3K]
3 years ago
12

Please help me if you can thank you.

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

-3 </= x < 2

negative 3 is less than or equal to x which is less than 2

Step-by-step explanation:

The top graph shows x is less than 2. The circle is open, so the solution excludes the number 2. (If it was solid, it would be less than or equal to 2)

The second graph shows x is greater than or equal to 3. (the circle is filled in)

So if x is greater than or equal to 3, then 3 is less than or equal to x

Please let me know if you have questions about this.

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Step-by-step explanation:

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Answer:

0.0838 = 8.38% probability of obtaining a sample proportion less than 0.5.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution

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Central Limit Theorem

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For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

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Probability of obtaining a sample proportion less than 0.5.

p-value of Z when X = 0.5. So

Z = \frac{X - \mu}{\sigma}

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Z = \frac{X - \mu}{s}

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Z = -1.38 has a p-value of 0.0838

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