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kakasveta [241]
3 years ago
11

the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate o

f the population mean. he selects and weighs a random sample of 81 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 95% confidence interval (upper limit) for the population mean?
SAT
1 answer:
bekas [8.4K]3 years ago
4 0

Answer:

14.7 and 16.9

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Answer:

The rock cycle describes how rocks change as a result of natural processes. The rock cycle forms new rocks using the crystallization, erosion and compaction processes. This makes the correct answer: D: all of the above. Igneous rocks for example are rocks formed from the crystallization( formation of rock crystals in cooling magma) of a liquid. Sedimentary rocks are formed by erosion. However, in order to form a sedimentary rock, the accumulated sediment must become compacted and cemented together.

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25. If a and Bare zeroes of x2 - 6x + k, what is
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Unit 11 volume & surface area homework 5 surface area of prisms & cylinders
likoan [24]

The volume of the prism is the amount of space on the prism

The volume of the cylinder is 760 cubic units

<h3>How to determine the volume?</h3>

The question is incomplete.

So, we make use of the following parameters

  1. Shape = Cylinder
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  3. Height, h = 2.

The volume of a cylinder is calculated using:

V = πr²h

Substitute known values in the above formula

V = 3.14 * 11² * 2

Evaluate the product

V = 759.88

Approximate

V = 760

Using the assumed values, the volume of the cylinder is 760 cubic units

Read more about volumes at:

brainly.com/question/1972490

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first isolate all infected children

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Fynjy0 [20]

i believe the answer is D because spinner 1’s probability is 1/2
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