Two Toy Companies Are Being Compared with Respect to the Time

question 4

Multiple Choice

Two toy companies are being compared with respect to the time it takes them to build a popular wooden train set. The study is interested in determining whether there is a difference in the variability between the two toy companies production times. They wish to conduct the hypothesis test using an alpha = 0.05. If random samples of 20 train sets are selected from each toy company, what is the appropriate F critical value?

• A) 2.526
• B) 2.938
• C) 2.168
• D) 2.124

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Definitions:

Rounded Pebbles

Smooth, round stones typically formed by the prolonged action of water or other forms of erosion and weathering on rocks.

Sandstone

A sedimentary rock made primarily of sand-sized grains of minerals or fragments of rocks, classified as clastic.

River

A significant stream of water that moves through a natural channel, heading towards the sea, a lake, or joining another stream.

Breccia

A rock composed of broken fragments of minerals or rock cemented together by a fine-grained matrix that can be similar or different in composition to the fragments.