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Confidence Interval for Mean: Child Manifest Anxiety Scale

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Standardized measures seem to indicate that the average level of anxiety has increased gradually over the past 50 years. In the 1950's average score on the Child Manifest Anxiety Scale was u= 15.1. A sample on n =16 of today's children produces a mean score of M=23.3 with SS= 240.

Interpret the confidence level

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The solution provides step by step method for the calculation of confidence interval for population mean. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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Standardized measures seem to indicate that the average level of anxiety has increased gradually over the past 50 years. In the 1950's average score on the Child Manifest Anxiety Scale was u= 15.1. A ...

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