If you wish to test the difference between the means of two-paired populations with samples of size 15 each, then the appropriate degrees of freedom is equal to:

A) 29
B) 28
C) 15
D) 14
E) 12

Calculate the periodic interest rate that matches the payment interval for each annuity (to the nearest 0.001%):

From a group of 12 students, we want to select a random sample of 5 students to serve on a university committee.How many combinations of random samples of 5 students can be selected?

A) 60
B) 95,040
C) 25
D) 792

In regression analysis, the dependent variable is a variable whose value is unknown and is being explained or predicted with the help of another variable.

In terms of the reliability of test scores,there are multiple elements to each person's score.The score that is actually recorded is the ______.

A) error score
B) true score
C) false score
D) observed score

An investment plan requires year-end contributions of $1,000 for 25 years.
What will be the future value of the plan if it earns 7½% compounded monthly for the first 10 years and 8% compounded semi-annually thereafter?

A check register shows a balance of $995.57. The bank statement shows a charge of $10 for a photocopy of a check as requested by the account owner, a regular service charge of $6.50, and a special charge of $12.00 for the printing of personalized checks. The bank statement also shows that interest of $1.49 was paid by the bank. Compute the adjusted cash balance of the check register.