Given below is the rate of return for one year reported in, Ask an Expert

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Given below is the rate of return for one year (reported in percent) for the sample of 12 mutual funds which are classified as taxable money market funds.

4.63 4.15 4.76 4.70 4.65 4.52 4.70 5.06 4.42 4.51 4.24 4.52

Using .05 significance level is it sensible to conclude that mean rate of return is more than 4.50 percent?

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