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Katyanochek1 [597]
2 years ago
9

Evaluate the expression 2-8 × 2-7=

Mathematics
1 answer:
Nady [450]2 years ago
7 0

Answer:

-21

Step-by-step explanation:

2-8 × 2-7 = 2-(8×2)-7

= 2-16-7

=-14-7

=-21

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Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

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"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

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