Measures of Central Tendency and Dispersion in Frequency Distributions

A Cosmetics manufacturer recently purchased a machine to fill 3-ounce cologne bottles. To test the accuracy of the machine‘s volume setting, 18 trial bottles were run. The resulting volumes (in ounces) for the trials were as follows:

the company does not normally re-calibrate the filling machine for this cologne if the average volume is within 0.04 of 3.00 ounces. Should it re-calibrate ?

Solution

Problems: Measures of Central Tendency and Dispersion in Frequency Distributions

Problem-01: Measures of Central Tendency and Dispersion in Frequency Distributions

The frequency distribution below represents the weights in pounds of a sample of packages carried la...

Problem-02: Measures of Central Tendency and Dispersion in Frequency Distributions

Davis Furniture Company has a revolving credit agreement with the fast National Bank. The loan showe...

Problem-03: Measures of Central Tendency and Dispersion in Frequency Distributions

Child-Care Community Nursery is eligible for a county social services grant as long as the average a...

Problem-04: Measures of Central Tendency and Dispersion in Frequency Distributions

Child-Care Community Nursery can continue to be supported by the county social services office as lo...

Problem-05: Measures of Central Tendency and Dispersion in Frequency Distributions

These data represent the ages patients admitted to a small hospital on February 28, 1996. Constru...

Problem-06: Measures of Central Tendency and Dispersion in Frequency Distributions

The Frequency distributions below represents the time in seconds needed to serve a sample of custome...

Problem-07: Measures of Central Tendency and Dispersion in Frequency Distributions

The owner of pest R Us in interested in building a new store. The owner will build if the average nu...

Problem-08: Measures of Central Tendency and Dispersion in Frequency Distributions

A Cosmetics manufacturer recently purchased a machine to fill 3-ounce cologne bottles. To test the a...

Problem-09: Measures of Central Tendency and Dispersion in Frequency Distributions

The production manager of Hinton Press is determining the average time needed to photograph one prin...

Problem-10: Measures of Central Tendency and Dispersion in Frequency Distributions

National Tire Company holds reserve funds in short-term marketable securities. The ending daily bala...

Problem-11: Measures of Central Tendency and Dispersion in Frequency Distributions

M. T. Smith travels the eastern United States as a sales representative for a textbook publisher. Sh...

Problem-12: Measures of Central Tendency and Dispersion in Frequency Distributions

Lillian Tyson has been the chairperson of the country library committee for 10 years. She contends t...

Problem-13: Measures of Central Tendency and Dispersion in Frequency Distributions

Dave’s Giveaway Store advertises, “If our average prices are not equal or lower than everyone else’s...

Problem-14: Measures of Central Tendency and Dispersion in Frequency Distributions

Bennett Distributions Company, a subsidiary of a major appliance manufacture, is forecasting regiona...

Problem-15: Measures of Central Tendency and Dispersion in Frequency Distributions

A professor has decided to use a weighted average in figuring final grades for this seminar students...

Problem-16: Measures of Central Tendency and Dispersion in Frequency Distributions

Problem-17: Measures of Central Tendency and Dispersion in Frequency Distributions

Keyes Home Furnishings ran six local newspaper advertisements during December.

Problem-18: Measures of Central Tendency and Dispersion in Frequency Distributions

The Nelson Window Company has manufacturing plants in five U.S. cities Orlando, Minneapolis, Dallas,...

Problem-19: Measures of Central Tendency and Dispersion in Frequency Distributions

The U.S. Postal Services handles seven basic types of letters and cards: third class, second class, ...

Problem-20: Measures of Central Tendency and Dispersion in Frequency Distributions

Matthews, Young and Associates, a management consulting firm, has four types of professionals on its...

Problem-21: Measures of Central Tendency and Dispersion in Frequency Distributions

The Growth in bad-debt expense for Johnston Office Supply Company over the last few follows. Calcula...

Problem-22: Measures of Central Tendency and Dispersion in Frequency Distributions

Realistic Stereo Shops market up its merchandise 35 percent above the cost of its latest additions t...

Problem-23: Measures of Central Tendency and Dispersion in Frequency Distributions

Hayes Textiles has shown the following percentage increase in net worth over the last 5 years.

Problem-24: Measures of Central Tendency and Dispersion in Frequency Distributions

Micro swift, the U.S.- based computer software giant, has posted an increase in net worth during 7 o...

Problem-25: Measures of Central Tendency and Dispersion in Frequency Distributions

The Birch Company, a manufacturer of electrical circuit boards, has manufactured the following numbe...

Problem-26: Measures of Central Tendency and Dispersion in Frequency Distributions

Bob Headen is calculating the average growth factor for this stereo store over the last 6 years. Usi...

Problem-27: Measures of Central Tendency and Dispersion in Frequency Distributions

Over a 3 week period, a store owner purchased $120 worth of acrylic sheeting for new display cases i...

Problem-28: Measures of Central Tendency and Dispersion in Frequency Distributions

Problem-29: Measures of Central Tendency and Dispersion in Frequency Distributions

Industrial Suppliers, Inc., Keeps records on the cost of processing a purchase order. Over the last ...

Problem-30: Measures of Central Tendency and Dispersion in Frequency Distributions

A sociologist has been studying the yearly changes in the number of convicts assigned to the largest...

Problem-31: Measures of Central Tendency and Dispersion in Frequency Distributions

Swifty Markets compares prices charged for identical items in all its food stores. Here are the pric...

Problem-32: Measures of Central Tendency and Dispersion in Frequency Distributions

For the following frequency distributions, determine

Problem-33: Measures of Central Tendency and Dispersion in Frequency Distributions

Meridian Trucking maintains mileage records on all of its rolling equipment. Here are weekly mileage...

Problem-34: Measures of Central Tendency and Dispersion in Frequency Distributions

The North Carolina Consumers Bureau has conducted a survey of cable television providers in the stat...

Problem-35: Measures of Central Tendency and Dispersion in Frequency Distributions

For the following frequency distributions,

Problem-36: Measures of Central Tendency and Dispersion in Frequency Distributions

The following data represent weights of gamefish caught on the charter boat Slickdrifter:

Problem-37: Measures of Central Tendency and Dispersion in Frequency Distributions

Problem-38: Measures of Central Tendency and Dispersion in Frequency Distributions

Problem-39: Measures of Central Tendency and Dispersion in Frequency Distributions

If insurance claims for automobile accidents follow the distributions given, determine the median us...

Problem-40: Measures of Central Tendency and Dispersion in Frequency Distributions

A researcher obtained the following answers to a statement on an evaluation survey: strongly disagre...

Problem-41: Measures of Central Tendency and Dispersion in Frequency Distributions

Here are the ages in years of the cars worked on by the Village Autohaus last week:

Problem-42: Measures of Central Tendency and Dispersion in Frequency Distributions

The ages of a sample of the students attending Sandhills Community College this semester are:

Problem-43: Measures of Central Tendency and Dispersion in Frequency Distributions

A librarian polled 20 different people as they left the library and asked them how many books they c...

Problem-44: Measures of Central Tendency and Dispersion in Frequency Distributions

The ages of residents of Twin Lakes Retirement Village have this frequency distribution: ClassFrequ...

Problem-45: Measures of Central Tendency and Dispersion in Frequency Distributions

What are the modal values for the following distributions?

Problem-46: Measures of Central Tendency and Dispersion in Frequency Distributions

The numbers of apartments in 27 apartment complexes in Cary, North Carolina, are given below.

Problem-47: Measures of Central Tendency and Dispersion in Frequency Distributions

Estimate the mode for the distribution given are given below

Problem-48: Measures of Central Tendency and Dispersion in Frequency Distributions

The number of solar heating systems available to the public is quite large and their heat-storage ca...

Problem-49: Measures of Central Tendency and Dispersion in Frequency Distributions

Ed Grant is the director of the Student Financial Aid Office at Wilderness College. He has used avai...

Problem-50: Measures of Central Tendency and Dispersion in Frequency Distributions

Here are student scores on a history quiz. Find the 80th percentile.

Problem-51: Measures of Central Tendency and Dispersion in Frequency Distributions

The Casual Life Insurance Company is considering purchasing a new fleet of company cars. The financi...

Problem-52: Measures of Central Tendency and Dispersion in Frequency Distributions

For the following data, compute the interquartile range.

Problem-53: Measures of Central Tendency and Dispersion in Frequency Distributions

For the sample that follows, compute the.

Problem-54: Measures of Central Tendency and Dispersion in Frequency Distributions

Here are the high temperature readings during June 1995 in Phonix, arizona. Find the 70th percentile...

Problem-55: Measures of Central Tendency and Dispersion in Frequency Distributions

These are the total fares (in dollars) collected Tuesday by the 20 taxis belonging to City Transit, ...

Problem-56: Measures of Central Tendency and Dispersion in Frequency Distributions

Redi-Mix Incorporated kept the following record of time (to the nearest 100th of a minute) its truck...

Problem-57: Measures of Central Tendency and Dispersion in Frequency Distributions

Warlington Appliances has developed a new combination blender-crock-pot. In a marketing demonstratio...

Problem-58: Measures of Central Tendency and Dispersion in Frequency Distributions

MacroSwift has decided to develop a new software program designed for CEOs and other high-level exec...

Problem-59: Measures of Central Tendency and Dispersion in Frequency Distributions

The New Mexico State Highway Department is charged with maintaining all state roads in good conditio...

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