Question: Find the values for each. a. t a / 2 and n = 18 for the 99% confidence interval for the mean b. t a

Find the values for each.

a. t a / 2 and n = 18 for the 99% confidence interval for the mean 

b. t a / 2 and n = 23 for the 95% confidence interval for the mean 

c. t a / 2 and n = 15 for the 98% confidence interval for the mean 

d. t a / 2 and n = 10 for the 90% confidence interval for the mean 

e. t a / 2 and n = 20 for the 95% confidence interval for the mean

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