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Home Q & A Board Science-Related Homework Help Mathematics
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zns889 zns889
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6 years ago
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes. The p-value is _____.
 a. .025
  b. .0456
  c. .05
  d. .0228
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gomezagomeza
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6 years ago
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zns889 Author
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6 years ago
Helped a lot
MLynneMcMillan
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Yesterday
Thank you, thank you, thank you!
einstein
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2 hours ago
Thanks
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