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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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k123p k123p
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6 years ago
A local electronics firm wants to determine their average daily sales (in dollars.) A sample of the sales for 36 days revealed an average sales of 139,000 . Assume that the standard deviation of the population is known to be 12,000.
 a. Provide a 95 confidence interval estimate for the true average daily sales.
  b. Provide a 97 confidence interval estimate for the true average daily sales.
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vbassvbass
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k123p Author
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6 years ago
Brilliant ツ
ky
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Yesterday
Thanks for your help!!
dedricgard
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2 hours ago
Thanks
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