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Sliva [168]
3 years ago
9

In which of the following situations is a sample mean of 55 most likely to be closest to the actual population mean? Please expl

ain.
(1) 100 students sampled and 1,000 in a population
(2) 100 students sampled and 500 in population
(3) 50 students sampled and 500 in population
(4) 50 students sampled and 1,000 in population
Mathematics
1 answer:
WARRIOR [948]3 years ago
5 0
<span>(2) 100 students sampled and 500 in population

This amount is the closest to the actual population and had more surveyed, this one will be most likely to be the closest to the actual population.</span><span>
</span>
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Step-by-step explanation:

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Answer:

y = 1.00114x + 1.75243

Step-by-step explanation:

Given

The x and y values

Required

The regression line equation

Because of the length of the given data, I will run the analysis using online tools, then analyze the result.

From the analysis, we have:

\sum x = 5050

\sum y = 5231.1011

\bar x = 50.5

\bar y = 52.311

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SP = 83419.7626 --- Sum of products

The regression equation is calculated as:

y = ax + b

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a = \frac{SP}{SSX}

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a = \frac{83419.76}{83325}

a = 1.00114

b = \bar y - a * \bar x

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b = 1.75243

So:

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6 0
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Step-by-step explanation:

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