A Random Sample of Ersatz University Students Revealed That 16

question 4

Multiple Choice

A random sample of Ersatz University students revealed that 16 females had a mean of $22.30 in their wallets with a standard deviation of $3.20,while 6 males had a mean of $17.30 with a standard deviation of $9.60.At  = .10,to test for equal variances in a two-tailed test,the critical values are:

• A) 0.441 and 3.24
• B) 0.556 and 2.27
• C) 0.345 and 4.62
• D) 0.387 and 2.90