For Mike Bayville: Statistical Analysis

1. Oak Construction Company built 128 houses in Hilltop Estates. If the company built 7 times as many colonial style houses as ranch style houses, how many ranch style houses were erected?



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2. Calculate the weighted mean for the following data: value=10, weight=2; value=12, weight=6; value=15, weight=8; value=18, weight=6; value=20, weight=2






3. This year Bronson’s Tire Co. reported assets of $545,350 which is $120,640 more than last year. If owner’s equity was $192,500 last year, what was the amount of liabilities reported on last year’s balance sheet?






4. Laser Printing and Graphics offers cash discounts of 2/15, 1/20, n/30 to customers on all purchases. A customer purchased $18,000 of merchandise on May 20. What is the amount of the net payment if the invoice was paid on June 8?





5. Matt Stinson invested $4,000 in a simple interest account paying 5.5% per year. If he received $385 in interest, how long did he leave the money in the investment? (Express your answer to the nearest hundredth of a year.)

[removed]21 months

[removed]1.5 years

[removed]21 weeks

[removed]175 days


6. Junko Kiera borrowed $13,000 at a discount loan rate of 12% for 30 months. Determine the true interest rate of Junko’s loan.






7. Klemson High-Tech Industries borrowed $65,000 for three years at 14% compounded semi-annually. How much interest will they pay on the loan when they pay it off at the end of the term of the loan? (Express your answer to the nearest cent.)






8. Determine the future value of an ordinary annuity paying 10% quarterly for nine years if quarterly deposits of $450 are made throughout the nine years.






9. An asset was purchased on January 3rd costing $75,000 with a salvage value of $2,800 and an estimated useful life of five years. Find the depreciation expense using the straight-line method.






10. Mahalyk’s Water Fun Shoppe specializes in jet skis. Mahalyk’s inventory records showed the following for the past year: purchased 30 jetskis on February 10th at a cost of $4,000 per jetski; purchased 100 jetskis on May 12th at a cost of $3,000 per jetski; purchased 20 jetskis on June 15th at a cost of $3,500 per jetski; purchased 50 jetskis on July 20th at a cost of $2,500 per jetski Use the Average Cost Method to determine Mahalyk’s value of ending inventory at the end of July if they had 75 jetskis left in inventory.






1. Which of the following statements is TRUE?

[removed]There is some loss of information when raw data is tallied into a stem-and-leaf display.

[removed]For a stem-and-leaf display, the leaf for the value 98 is 9.

[removed]The stem in a stem-and-leaf display is the leading digit.

[removed]For a stem-and-leaf display, the stem for the value 67 is 7.


2. Three persons earn $8 an hour, six earn $9 an hour, and one earns $12 an hour. The weighted mean hourly wage is:






3. According to which classification or type of probability are the events equally likely?


[removed]Relative frequency


[removed]Mutually exclusive


4. A study determines that 60% of the voters in a town intend to vote for the incumbent mayor. If a sample of 8 people is selected, using the binomial formula, what is the approximate probability that 6 of the 8 people surveyed intend to vote for the incumbent?






5. What is a listing of all possible outcomes of an experiment and their corresponding probability of occurrence called?

[removed]Random variable

[removed]Probability distribution

[removed]Subjective probability

[removed]Frequency distribution


6. What kind of distributions are the binomial and Poisson distributions?



[removed]Both discrete and continuous

[removed]Neither discrete or continuous


7. Which of the following is NOT true regarding the normal distribution?

[removed]Mean, median and mode are all equal.

[removed]It has a single peak.

[removed]It is symmetrical.

[removed]The points of the curve meet the X-axis at z = –3 and z = 3.


8. The mean of a normally distributed group of weekly incomes of a large group of executives is $1,000 and the standard deviation is $100. What is the z-score for an income of $1,100?






9. Which of the following is NOT a component of the decision-making process?



[removed]States of nature

[removed]Seasonal indexes


10. Applying probabilities to a payoff table results in:

[removed]expected opportunity loss.

[removed]expected monetary value.

[removed]expected value of perfect information.

[removed]decision tree.


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