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Sample 10
Mean 250
Standard Dev
What is the 90% confidnce for population mean?
Solution
CI = mean +-z*sd / rootn z = 1.645 from tables CI = 250 +- 1.645*sd/ root 10 The
question is wrong Standard deviation is not mentioned

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Sample 10 Mean 250 Standard Dev What is the 90 confidnce fo.pdf

  • 1. Sample 10 Mean 250 Standard Dev What is the 90% confidnce for population mean? Solution CI = mean +-z*sd / rootn z = 1.645 from tables CI = 250 +- 1.645*sd/ root 10 The question is wrong Standard deviation is not mentioned