# Posts by Tykrane

Total # Posts: 19

**Math**

What is the percentage increase from 132 million to 153.1 million?

*October 30, 2010*

**Statistics**

A purchasing agent for a trucking company is shopping for replacement tires for their trucks from two suppliers. The suppliers' prices are the same. However, Supplier A's tires have an average life of 60,000 miles with a standard deviation of 10,000 miles. Supplier B&#...

*December 17, 2009*

**Statistics**

What disadvantage(s) are there of the mean deviation? A. based on only two observation B.can be distorted by a large mean C. not in the same units as the original data. D.has no disadvantage E. none of the above.

*December 17, 2009*

**Statistics**

A disadvantage of using arithmetic mean to summarize a set of data is? A. the arithmetic mean sometimes has two values. B. it can used for interval and ratio data. C. it is always different from the median. D. it can be biased by one or two extremely small or large values.

*December 17, 2009*

**Statistics**

A purchasing agent for a trucking company is shopping for replacement tires for their trucks from two suppliers. The suppliers' prices are the same. However, Supplier A's tires have an average life of 60,000 miles with a standard deviation of 10,000 miles. Supplier B&#...

*December 17, 2009*

**Statistics**

If we test a small number of light bulbs from a large group, the small group is called a: A. breakout session B. Population C. group. D. Sample E. none of the above

*December 17, 2009*

**Business Statistics**

A sample of the personnel files of eight male employees revealed that, during a six month period, they lost the following number of days due to illness: 2, 0, 6, 3, 10, 4, 1, and 2. Caluculate the mean deviation.

*December 13, 2009*

**Business**

When a class interval is expressed as: 100 up to 200, A. observations with values of 100 are excluded from the class frequency. B. observations with values of 200 are included in the class frequency. C. observation with values of 200 are excluded from the class frequency. D. ...

*December 13, 2009*

**Business**

In a simple line chart, where is time plotted? A. on the X-axis B. on the Y-axis C. on either axis D. never plotted

*December 13, 2009*

**Business**

In a frequency distribution, what is the number of observations in a class called? A. class midpoint B. class interval C. class array D. class frequency E. none of the above

*December 13, 2009*

**Business**

The monthly salaries of a sample of 100 employees were rounded to the nearest ten dollars. They ranged from a low of $1,040 to a high of $1,720. If we want to condense the data into seven classes, what is the most convenient class interval? A. $50 B. $100 C. $150 D. $200 E. ...

*December 13, 2009*

**Statistics**

When a class interval is expressed as: 100 up to 200, A. observations with values of 100 are excluded from the class frequency. B. observations with values of 200 are included in the class frequency. C. observation with values of 200 are excluded from the class frequency. D. ...

*December 13, 2009*

**Statistics**

The relative frequency for a class is computed as: A. class width divided by class interval. B. class midpoint divided by the class frequency. C. class frequency divided by the interval. D. class frequency divided by the total frequency>

*December 13, 2009*

**Business Statistics**

If we test a small number of light bulbs from a large group, the small group is called a: A. breakout session B. population C. group D. sample E. none of the above

*December 13, 2009*

**Statistics**

Which one of the following is NOT an example of discrete data? A. number of households watching the Home Improvement. B. number of employees reporting in sick. C. number of miles between New York City and Chicago. D. number of members of the Dobbs Ferry- Irvington Lions Club. ...

*December 13, 2009*

**Business Statistics**

What type of data is the projected return on an investment? A. qualitative B. continuous C. attribute D. discrete E. none of the above

*December 13, 2009*

**statistics**

A student was study the political party preference of a university's student population. The survey instrument asked student to identify themselves as a democrat or a republican. This question is flawed because: A. students generally don't know their political ...

*December 13, 2009*

**Business Statisics**

A student was study the political party preference of a university's student population. The survey instrument asked student to identify themselves as a democrat or a republican. This question is flawed because: A. students generally don't know their political ...

*December 13, 2009*

**business**

What type of data is the number of gallons of gasoline pumped by a filling station during a day? A. qualitative B. continuous C. attribute D. discrete E. none of the above

*December 13, 2009*

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