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agasfer [191]
3 years ago
12

Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use trainin

g wheels. It was revealed that they used them an average of six months with a sample standard deviation of three months. Assume that the underlying population distribution is normal.

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
7 0

Answer:

CI = 3.931 < μ < 8.069

Step-by-step explanation:

Hello !

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The vertical angles are equal to each other, that is, one of the one-sided corners will be 116°.

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see explanation

Step-by-step explanation:

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