Problem N5575 probability theory confidence interval
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5575. x̅=6, n=900, σ=32. Determine the confidence interval for estimating with reliability γ=0.989 the unknown mathematical expectation a of the normally distributed feature X of the general population, if the sample mean x̅в=6, the sample size n=900 and the general standard deviation σ=32 are known.
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- Updated on the site 22.04.2023
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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Problem N5575 probability theory confidence interval
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Sold <10
0 000 X
Secure deal
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Cumulative discount
| 30 $ | the discount is 10% |
| 20 $ | the discount is 7% |
| 18 $ | the discount is 6% |
| 15 $ | the discount is 5% |
| 12 $ | the discount is 4% |
| 9 $ | the discount is 3% |
| 6 $ | the discount is 2% |
| 3 $ | the discount is 1% |
Check your discount
Amount of purchases from the seller: $
Your discount: %
Cumulative discount
| 30 $ | the discount is 10% |
| 20 $ | the discount is 7% |
| 18 $ | the discount is 6% |
| 15 $ | the discount is 5% |
| 12 $ | the discount is 4% |
| 9 $ | the discount is 3% |
| 6 $ | the discount is 2% |
| 3 $ | the discount is 1% |
Check your discount
Amount of purchases from the seller: $
Your discount: %