What t∗t∗ critical value would you use for a confidence interval for the population mean in each of the following situations? Use 3 decimal places.        a) For a 95% confidence interval based on n = 13 observations:____________ b) For a 99% confidence interval from an SRS of 23 observations:___________ c) For an 80% confidence interval from a sample of size 6:

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What t∗t∗ critical value would you use for a confidence interval for the population mean in each of the following situations? Use 3 decimal places.     

 

a) For a 95% confidence interval based on n = 13 observations:____________
b) For a 99% confidence interval from an SRS of 23 observations:___________
c) For an 80% confidence interval from a sample of size 6:_____________

 

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