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Korvikt [17]
3 years ago
10

A researcher initially plans to take an SRS of size 160 from a certain population and calculate the sample mean. Later, the rese

archer decides to increase the sample size so that the standard deviation of the sampling distribution of will be half as big as when using a sample size of 160.
What sample size should the researcher use?
Mathematics
1 answer:
lara [203]3 years ago
3 0

Answer:

640

Step-by-step explanation:

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round 59.6487 to 2 decimal places=

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What is the product? Enter your answer as a fraction, in simplified form, in the box. −4/5⋅10/16
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Question 4 (Essay Worth 10 points)
Over [174]

The 3-D shape would be created if the figure was rotated around the x-axis is a cone

<h3>What are 3-D shapes?</h3>

3-D shapes (short form of 3-Dimensional shapes) are shapes that have width, length and height

<h3>How to determine the 3-D shape?</h3>

The coordinates are given as:

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When the above coordinates are plotted on a coordinate plane and the points are connected;

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See attachment for the shape

As a general rule

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Read more about rotation at:

brainly.com/question/4289712

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Quadrilateral with no parallel sides
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The answer is a trapezoid.

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