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A local hardware store claims that the mean waiting time in line is less than 3.7...

A local hardware store claims that the mean waiting time in line is less than 3.7 minutes. A random sample of 20 customers has a mean of 3.5 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the bank's claim.

Null:

Alternative:

T=

p-Value=

Choose one: Reject or Fail to Reject

Conclusion in Context:

Math   Statistics-And-Probability   
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