Exam 2: Graphs,charts and Tablesdescribing Your Data

The Maple Grove Hotel manager has collected data on the number of rooms occupied each evening for the past 700 nights.The fewest rooms occupied during that period was 11 and the most was the capacity,430.Based on this information,which of the following would be reasonable class limits for the first class if the manager wishes to use 8 classes to develop a frequency distribution?

(Multiple Choice)

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Question 101

Consider a situation in which both a frequency distribution and a relative frequency distribution have been developed for the same quantitative variable.If histograms are constructed from each distribution,the graphs will appear to have the same shape.

(True/False)

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Question 102

The appropriate number of classes should generally be between 5 and 20.

(True/False)

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Question 103

A tire store manager has collected data showing the number of tires of each brand sold during the past month.A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

(True/False)

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Question 104

The regional sales manager for a medical supply company recently collected data on the reasons why customers returned the merchandise for a refund.She actually formed a frequency distribution for this variable.It would now be acceptable to construct a bar chart to graphically display the results.

(True/False)

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Question 105

To show how the price of a stock has changed over the last 3 months,the best type of chart to use is:

(Multiple Choice)

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Question 106

If two variables show a positive linear relationship in a scatter diagram:

(Multiple Choice)

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Question 107

After developing a frequency distribution for a quantitative variable,a histogram can be developed with the horizontal axis representing the values of the variable and the vertical axis representing the frequency of occurrence in each class or group.

(True/False)

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Question 108

One of the key differences between a bar chart and histogram is:

(Multiple Choice)

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Question 109

Bar charts can typically be formed with the bars vertical or horizontal without adversely affecting the interpretation.

(True/False)

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Question 110

In preparing a line chart,the horizontal axis shows time and the vertical axis shows the value of the variable of interest.

(True/False)

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Question 111

When developing a frequency distribution,the following classes would be considered acceptable.

(True/False)

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Question 112

Which of the following is a key difference between a bar chart and a histogram?

(Multiple Choice)

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Question 113

A bar chart is most likely used to display which of the following?

(Multiple Choice)

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Question 114

Scatter diagrams can be used for either quantitative or qualitative data.

(True/False)

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Question 115

Which of the following questions can NOT be answered using a scatter diagram?

(Multiple Choice)

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Question 116

When using the Histogram tool in Excel to construct a frequency distribution and histogram,if the first bin value is 10 and the second bin value is 20,the frequency count for the second class will include all values from 10 up to,but not including,20.

(True/False)

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Question 117

In a recent study of retail daily sales by stores at a mall in Kansas,the minimum daily sales was $700 and the maximum was $51,000.If you wish to construct a frequency distribution with 10 classes,the minimum class width would be $5,100.

(True/False)

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Question 118

A study of 4000 Dell PC customers listed the age of the customer among other variables.The youngest customer was 14 years old and the oldest customer was 84 years old.If analysts for the company wish to develop a frequency distribution with 7 classes,the smallest value that the class width can be is 10 years.

(True/False)

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Question 119

In a scatter plot the points should always be connected with a line.

(True/False)

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Question 120

Showing 101 - 120 of 138

Consider a situation in which both a frequency distribution and a relative frequency distribution have been developed for the same quantitative variable.If histograms are constructed from each distribution,the graphs will appear to have the same shape.

The appropriate number of classes should generally be between 5 and 20.

A tire store manager has collected data showing the number of tires of each brand sold during the past month.A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

The regional sales manager for a medical supply company recently collected data on the reasons why customers returned the merchandise for a refund.She actually formed a frequency distribution for this variable.It would now be acceptable to construct a bar chart to graphically display the results.

To show how the price of a stock has changed over the last 3 months,the best type of chart to use is:

If two variables show a positive linear relationship in a scatter diagram:

After developing a frequency distribution for a quantitative variable,a histogram can be developed with the horizontal axis representing the values of the variable and the vertical axis representing the frequency of occurrence in each class or group.

One of the key differences between a bar chart and histogram is:

Bar charts can typically be formed with the bars vertical or horizontal without adversely affecting the interpretation.

In preparing a line chart,the horizontal axis shows time and the vertical axis shows the value of the variable of interest.

When developing a frequency distribution,the following classes would be considered acceptable.

Which of the following is a key difference between a bar chart and a histogram?

A bar chart is most likely used to display which of the following?

Scatter diagrams can be used for either quantitative or qualitative data.

Which of the following questions can NOT be answered using a scatter diagram?

When using the Histogram tool in Excel to construct a frequency distribution and histogram,if the first bin value is 10 and the second bin value is 20,the frequency count for the second class will include all values from 10 up to,but not including,20.

In a recent study of retail daily sales by stores at a mall in Kansas,the minimum daily sales was $700 and the maximum was $51,000.If you wish to construct a frequency distribution with 10 classes,the minimum class width would be $5,100.

In a scatter plot the points should always be connected with a line.

The Where, why, and How of Data Collection

Describing Data Using Numerical Measures

Using Probability and Probability Distributions

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Goodness-Of-Fit Tests and Contingency Analysis

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introduction to Quality and Statistical Process Control

Introduction to Decision Analysis

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