You believe the population is normally distributed and you know the standard deviation is σ = 6.9 σ = 6.9 . you obtain a sample mean of m = 64.4 m = 64.4 for a sample of size n = 32 n = 32 . what is the critical value for this test?

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%