Question: An analyst is collecting data on mutual fund performance. He estimates that the standard deviation of funds' returns is 4% and returns are independent across

An analyst is collecting data on mutual fund performance. He estimates that the standard deviation of funds' returns is 4% and returns are independent across funds. To achieve a standard error of sample mean of 0.5% how many funds does he need to include in his sample? O 8. O 64 128

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