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If sample size is 15, below please fill the UPPER and LOWER critical values of the...

  1. If sample size is 15, below please fill the UPPER and LOWER critical values of the standard normal distribution and t distribution under the various confidence levels. (20%)

Confidence level      standard normal distribution              t distribution   

80%                 _______________               _______________

90%                 _______________               _______________

95%                 _______________               _______________

98%                 _______________               _______________

99%                 _______________               _______________

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