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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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Theleeman Theleeman
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5 years ago
The national sales manager of Fast Grow Corp is working on next year's budget projections. He knows that the population standard deviation is 17.66 . To estimate the daily per diem cost for outside sales people, he has taken a random sample of 36 individual expense accounts and found a mean of 90.29 . The 91.08 percent confidence interval for the per diem expense is:
 a. 86.45 to 94.13.
  b. 60.27 to 120.37.
  c. 85.29 to 95.29.
  d. 74.43 to 107.9.
  e. 84.32 to 96.26.
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racheyrachey
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Theleeman Author
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5 years ago
Correct Slight Smile TY
vanna2014
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Yesterday
Thanks
missnoname
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2 hours ago
this is exactly what I needed
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