# Let's assume that the nation

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Question description

Let's assume that the national credit card interest rate is 12.83%. We study 62 college students and find that their average interest rate is 14% with a standard deviation of 9.3%. What is the 95% confidence interval for this single-sample t test? a.  [6.937, 11.663]  b.   [10.467, 15.193]  c.   [11.637, 16.363]  d.   [12.99, 15.01]

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