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Home Q & A Board Science-Related Homework Help Mathematics
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beaches411 beaches411
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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 these 100 customers to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. The 95 confidence interval for the true average checkout time (in minutes) is
 a. 2.5 to 3.5.
  b. 1.36 to 4.64.
  c. 1 to 5.
  d. 2.804 to 3.196.
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GavaaconGavaacon
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beaches411 Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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Thanks for your help!!
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