Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of a population mean at the α=0.10 level of significance with 10 degrees of freedom.   ​(b) Determine the critical​ value(s) for a​ left-tailed test of a population mean at the α=0.01 level of significance based on a sample size of n=20.   ​(c) Determine the critical​ value(s) for a​ two-tailed test of a population mean at the α=0.05 level of significance based on a sample size of n=13. LOADING... Click here to view the​ t-Distribution Area in Right Tail

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.