uppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than ​%. a​ mutual-fund rating agency randomly selects months and determines the rate of return for a certain fund. the standard deviation of the rate of return is computed to be ​%. is there sufficient evidence to conclude that the fund has moderate risk at the level of​ significance? a normal probability plot indicates that the monthly rates of return are normally distributed.