Which of the following would be an example of a design that examines the effects of region of residence (e.g. ,Northeast,South,Midwest,and West) and income (i.e. ,low,medium,and high) ?

A) simple ANOVA
B) one-way ANOVA
C) 4 × 3 ANOVA
D) 3 × 3 ANOVA

In 1996, the average combined SAT score (math + verbal) for students in the United States was 1013, and 41% of all high school graduates took this test. Suppose that 500 students are randomly selected throughout the United States.
Which of the following random variables has an approximate binomial distribution? The number of students who took the SAT.
____________________________
The scores of the 500 students on the SAT.
____________________________
The number of students who scored above average on the SAT.
____________________________
The amount of time it took each student to complete the SAT.
____________________________

Refer to XOSCCO Steel Company. Compute the book value of the equipment at the end of the fifth year.

If $4,000 is to be paid now. What amount would be equivalent 97 days earlier given an interest rate of 4.25% per year?

A) $3,955.33
B) $3,844.22
C) $3,733.11
D) $3,622.00
E) $4,421.67

A producer of brass rivets randomly samples 500 rivets each hour and calculates the proportion of defectives in the sample. The mean sample proportion calculated from 250 samples was equal to 0.025. Calculate the upper and lower control limits for a control chart for the proportion of defectives in samples of 500 rivets.
UCL = ______________
LCL = ______________

Use the formula $S=\sqrt{A}$ to find the length of the side s of a square whose area is A = 28.15 square inches. Round your answer to two decimal places.

A) 149.35
B) 792.42
C) 5.31
D) 28.15
E) -28.15

Researchers determined that 60 Kleenex tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold: = 52 and s = 22. Suppose the alternative we wanted to test was . The correct rejection region for = 0.05 is

A) rejectif t > 1.6604
B) rejectif t < -1.6604
C) rejectif t > 1.9842 or Z < -1.9842
D) rejectif t < -1.9842
E) rejectif t > -1.9842