Lecture 5. Normal Sampling Distributions and Confidence Intervals

1. 1A [blank_start]confidence interval[blank_end] is a numerical interval bound by two numbers (an upper limit and lower limit) within which a true population value is going to fall within.

   1. Aconfidence interval
2. 2The estimation using confidence intervals is done at a certain level of confidence. What is the usual level of confidence?

   1. A85%
   2. B90%
   3. C95%
   4. D100%
3. 3In the equation to calculate confidence intervals 1.96 represents the associated T value with 95% of the mean values in the sampling distribution

   1. ATrue
   2. BFalse
4. 4In the equation to calculate confidence intervals x-bar represents the

   1. APoint estimate
   2. Bsample mean
   3. Cpopulation mean
   4. Dstandard error of the mean
5. 595% CI or μ=

   

   1. Ax̄
   2. Bx
   3. C1.96
   4. D2.57
   5. Eσ
   6. Fs
   7. Gn
   8. H√n
6. 6When sigma is unknown, the formula for 95% Confidence Interval is

   

   1. Ax
   2. Bx̄
   3. Cz
   4. Dt
   5. Es
   6. Fn
   7. G√n
   8. H√s/n

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Biostatistics Quiz on Lecture 5. Normal Sampling Distributions and Confidence Intervals, created by Stephanie Reid on 24/09/2019.

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Stephanie Reid

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English

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Created on 24 Sep 2019 · updated on 24 Sep 2019

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biostatistics

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