Interval Estimate of Population Mean with Unknown Variance | Statistics and Probability

Statistics and Probability
Interval Estimate of Population Mean with Unknown Variance
In statistics, a confidence interval (CI) is a type of estimate computed from the statistics of the observed data. This gives a range of values for an unknown parameter (for example, a population mean). The interval has an associated confidence level that gives the probability with which an estimated interval will contain the true value of the parameter. The confidence level is chosen by the investigator. For a given estimation in a given sample, using a higher confidence level generates a wider (i.e., less precise) confidence interval. In general terms, a confidence interval for an unknown parameter is based on sampling the distribution of a corresponding estimator
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[@deantuplano9091]

Thank you po sir! ❣️

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[@faithiefaith68]

Pano po if sample size is larger than 30 po which is enough to invoke central limit theorem?

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[@christinenoquera9796]

Sir may vid ka po ng given ang confidence level at sample size less tha. 30 . Pinapahanap ang alpha.

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[@JAM022]

Sir what about po if yung confidence interval nya is 97% and the calculated α/2 is 0.015. Paano makuha yung critical value? As per table po walang 0.015. Hope ma notice, thank you.

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Pano po kapag hindi given yung sample mean?

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