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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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zns889 Author
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6 years ago
Brilliant ツ
joyceess
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Yesterday
Correct Slight Smile TY
shangshang
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2 hours ago
Thanks
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