SOLUTION: Keep Confidence Level 90%. For Sample size 4, Sample Mean 26 and sample standard deviation 7 1. Use Appendix table IV and find t-value for your case. 2. Calculate Margin of Er

Algebra ->  Probability-and-statistics -> SOLUTION: Keep Confidence Level 90%. For Sample size 4, Sample Mean 26 and sample standard deviation 7 1. Use Appendix table IV and find t-value for your case. 2. Calculate Margin of Er      Log On


   



Question 951475: Keep Confidence Level 90%. For Sample size 4, Sample Mean 26 and sample standard deviation 7
1. Use Appendix table IV and find t-value for your case.
2. Calculate Margin of Error.
3. Create Confidence Interval for Population Mean.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Keep Confidence Level 90%. For Sample size 4, Sample Mean 26 and sample standard deviation 7
1. Use Appendix table IV and find t-value for your case.
Note: I used a TI-84+ calculator to find::
-invT(0.05,3) = 2.3534
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2. Calculate Margin of Error.
ME = 2.3534(7/sqrt(4) = 8.2368
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3. Create Confidence Interval for Population Mean.
26-8.2368< u < 26+8.2368
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Cheers,
Stan H.
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