Credit terms of 2/10, n/45 mean: multiple choice a) payment in full is due 2 days after date of the invoice. b) if the invoice is paid within 10 days of its date, a 2% discount may be taken; otherwise the total amount is due in 35 days. c) if the invoice is paid within 10 days of its date, a 2% discount may be taken; otherwise the total amount is due in 45 days. d) payment in full is due 45 days after date of the invoice with no discount offered.

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3%. a mutual-fund rating agency randomly selects 27 months and determines the rate of return for a certain fund. the standard deviation of the rate of return is computed to be 2.19%. is there sufficient evidence to conclude that the fund has moderate risk at the alpha equals 0.05 level of significance? a normal probability plot indicates that the monthly rates of return are normally distributed.