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A) Traffic speed is investigated at a certain section of freeway. Mean speed is 73mph. Sample...

A) Traffic speed is investigated at a certain section of freeway. Mean speed is 73mph. Sample standard deviation was 20 mph. There were 24 samples.

A researcher claims the actual speed on that freeway is more than 76 mph.

What would be the null hypothesis?

B) What would be the alternative hypothesis?

C) What kind of test are we looking at?

D) Find the critical value

Math   Statistics-And-Probability   
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