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tangare [24]
3 years ago
13

The mean GPA for 112 residents of the local apartment complex is 1.7. What is the best point estimate for the mean GPA for all r

esidents of the local apartment complex
Mathematics
1 answer:
Sedbober [7]3 years ago
4 0

Answer:

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}};

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

In this problem, we have that:

The sample of 112 residents has a mean GPA of 1.7.

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

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Answer:

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Answer:

r'(t) = 298t  -850

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So, we have:

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How to solve by factoring 16x^=121
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-------------------------------------------------------
Equation Given :
-------------------------------------------------------
16x² = 121

-------------------------------------------------------
Take away 121 from both sides:
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16x² - 121 = 0

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Make each term a perfect square
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(4x)² - (11)² = 0

--------------------------------------------------------
Apply algebraic rule : a² - b² = (a + b)(a - b)
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Apply zero product property :
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4x + 11 = 0 or 4x - 11 = 0

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Solve for x :
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4x = - 11 or 4x = 11
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Answer: x = -11/4 or x = 11/4
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