Question

According to Money, the average yield of a 6-month bank certificate of deposit (CD) is 3.56%, and the average yield for money market funds (MMFs) is 4.84%. Assume that these two averages come from two random samples of 20 each from these two kinds of investments, and that the sample standard deviation for the CDs is 2.8% and for the MMFs it is 3.2%. Use statistical inference to determine whether, on average, one mode of investment is better than the other.


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  • CreatedJune 03, 2015
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