Determine the margin of error for a confidence interval to estimate the population mean with n=38 and =43 for the following confidence levels.

a)

93%

b)

96

c)

99%

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a) With a 93% confidencelevel, the margin of error is

(Round to two decimal places asneeded.)

b) With a 96% confidencelevel, the margin of error is

1

(Round to two decimal places asneeded.)

c) With a 99% confidencelevel, the margin of error is

(Round to two decimal places asneeded.)