Question 1

One of the major disadvantages of the Histogram tool is that the results are not dynamically linked to the data.

Accepted Answer

A) True 
 B)False

Question 2

A _____ is a subset of objects taken from the _____.

Accepted Answer

A) population; sample 
B) cluster; strata 
C) sample; population 
D) sample space; experiment 
A) population; sample 
B) cluster; strata 
C) sample; population 
D) sample space; experiment

Question 3

A manager at a local manufacturing company has been monitoring the output of one of the machines used to manufacture chromium shells.Past data indicate that if the machine is functioning properly,the length of the shells produced by this machine can be modeled as being normally distributed with a mean of 118 centimeters and a standard deviation of 6.3 centimeters.Suppose 10 shells produced by this machine are randomly selected.What is the probability that the average length of these 10 shells will be between 116 and 120 centimeters when the machine is operating "properly?"

Accepted Answer

A) 0.2709 
B) 0.2943 
C) 0.9656 
D) 0.6826 
A) 0.2709 
B) 0.2943 
C) 0.9656 
D) 0.6826

Question 4

The square of the correlation coefficient is called the coefficient of determination.

Accepted Answer

A) True 
 B)False

Question 5

In hypothesis testing,the null hypothesis,H0,is assumed to be false in the absence of contradictory data.

Accepted Answer

A) True 
 B)False

Question 6

The rejection region is chosen so that the probability of the test statistic falling into it,if H0 is true,is _____.

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 7

The sampling method where every item in the population has an equal probability of being selected is called:

Accepted Answer

A) simple random sampling. 
B) cluster sampling. 
C) systematic sampling. 
D) judgment sampling. 
A) simple random sampling. 
B) cluster sampling. 
C) systematic sampling. 
D) judgment sampling.

Question 8

Probability is the likelihood that an outcome occurs.

Accepted Answer

A) True 
 B)False

Question 9

In Excel's Histogram tool,how are bins defined?

Accepted Answer

For discrete values,a column of these va

Question 10

A testing engineer in a light bulb factory is planning a study to estimate the average life of a large shipment of light bulbs.The engineer wants to estimate the average life within plus or minus 16 hours with 95 percent confidence.Assuming a process standard deviation of 90 hours,determine the sample size for this study.

Accepted Answer

A) 7 
B) 43 
C) 58 
D) 122 
A) 7 
B) 43 
C) 58 
D) 122

Question 11

Any sampling procedure can result in _____ types of errors.

Accepted Answer

A) two 
B) three 
C) four 
D) five 
A) two 
B) three 
C) four 
D) five

Question 12

Based on historical data,the diameter of a ball bearing is normally distributed with a mean of 0.527 cm and a standard deviation of 0.008 cm.Suppose that a sample of 18 ball bearings are randomly selected from a very large lot.Determine the probability that the average diameter of a sampled ball bearing is greater than 0.530 cm.

Accepted Answer

A) 0.2324 
B) 0.4938 
C) 0.5062 
D) 0.0559 
A) 0.2324 
B) 0.4938 
C) 0.5062 
D) 0.0559

Question 13

Why were additional experimental designs conducted to reduce soldering defects in the process?

Accepted Answer

The predicted average and the

Question 14

A random variable is a theoretical description of the outcome of an experiment.

Accepted Answer

A) True 
 B)False

Question 15

_____ involve(s) drawing inferences about two contrasting propositions relating to the value of a population parameter,one of which is assumed to be true in the absence of contradictory data.

Accepted Answer

A) Probability distributions 
B) Hypothesis testing 
C) Descriptive statistics 
D) Predictive statistics 
A) Probability distributions 
B) Hypothesis testing 
C) Descriptive statistics 
D) Predictive statistics

Question 16

The number of defects observed in a sample is an example of a continuous random variable.

Accepted Answer

A) True 
 B)False

Question 17

A typical group is selected from the population,and a random sample is taken from within the group.This is an example of _____ sampling.

Accepted Answer

A) simple random 
B) stratified 
C) cluster 
D) judgment 
A) simple random 
B) stratified 
C) cluster 
D) judgment

Question 18

What are the tools and databases identified by the team to be used in the study?

Accepted Answer

The tools included two statistical/sprea

Question 19

Everything else remaining constant,when the sample size increases:

Accepted Answer

A) the variance decreases. 
B) the variance increases. 
C) the variance is unaffected. 
D) the variance could increase or decrease. 
A) the variance decreases. 
B) the variance increases. 
C) the variance is unaffected. 
D) the variance could increase or decrease.

Question 20

Often,the positively skewed data can be transformed to a normal distribution by using a mathematical transformation such as taking logarithms.

Accepted Answer

A) True 
 B)False

One of the major disadvantages of the Histogram tool is that the results are not dynamically linked to the data.

A _ is a subset of objects taken from the _.

The square of the correlation coefficient is called the coefficient of determination.

In hypothesis testing,the null hypothesis,H₀,is assumed to be false in the absence of contradictory data.

The rejection region is chosen so that the probability of the test statistic falling into it,if H₀is true,is _____.

The sampling method where every item in the population has an equal probability of being selected is called:

Probability is the likelihood that an outcome occurs.

In Excel's Histogram tool,how are bins defined?

Any sampling procedure can result in _____ types of errors.

Why were additional experimental designs conducted to reduce soldering defects in the process?

A random variable is a theoretical description of the outcome of an experiment.

_____ involve(s) drawing inferences about two contrasting propositions relating to the value of a population parameter,one of which is assumed to be true in the absence of contradictory data.

The number of defects observed in a sample is an example of a continuous random variable.

A typical group is selected from the population,and a random sample is taken from within the group.This is an example of _____ sampling.

What are the tools and databases identified by the team to be used in the study?

Everything else remaining constant,when the sample size increases:

Often,the positively skewed data can be transformed to a normal distribution by using a mathematical transformation such as taking logarithms.

Introduction to Quality

Foundations of Quality Management

Customer Focus

Workforce Focus

Process Focus

Design for Quality and Product Excellence

Measuring and Controlling Quality

Process Improvement and Six Sigma

The Baldrige Framework for Performance Excellence

Strategy and Performance Excellence

Measurement and Knowledge Management for Performance Excellence

Leadership for Performance Excellence

Building and Sustaining Quality and Performance Excellence

Filters

Exam 6: Statistical Methods in Quality Management

One of the major disadvantages of the Histogram tool is that the results are not dynamically linked to the data.

A _____ is a subset of objects taken from the _____.

The square of the correlation coefficient is called the coefficient of determination.

In hypothesis testing,the null hypothesis,H0,is assumed to be false in the absence of contradictory data.

The rejection region is chosen so that the probability of the test statistic falling into it,if H0 is true,is _____.

The sampling method where every item in the population has an equal probability of being selected is called:

Probability is the likelihood that an outcome occurs.

In Excel's Histogram tool,how are bins defined?

Any sampling procedure can result in _____ types of errors.

Why were additional experimental designs conducted to reduce soldering defects in the process?

A random variable is a theoretical description of the outcome of an experiment.

_____ involve(s) drawing inferences about two contrasting propositions relating to the value of a population parameter,one of which is assumed to be true in the absence of contradictory data.

The number of defects observed in a sample is an example of a continuous random variable.

A typical group is selected from the population,and a random sample is taken from within the group.This is an example of _____ sampling.

What are the tools and databases identified by the team to be used in the study?

Everything else remaining constant,when the sample size increases:

Often,the positively skewed data can be transformed to a normal distribution by using a mathematical transformation such as taking logarithms.

Introduction to Quality

Foundations of Quality Management

Customer Focus

Workforce Focus

Process Focus

Design for Quality and Product Excellence

Measuring and Controlling Quality

Process Improvement and Six Sigma

The Baldrige Framework for Performance Excellence

Strategy and Performance Excellence

Measurement and Knowledge Management for Performance Excellence

Leadership for Performance Excellence

Building and Sustaining Quality and Performance Excellence

Filters

A _ is a subset of objects taken from the _.

In hypothesis testing,the null hypothesis,H₀,is assumed to be false in the absence of contradictory data.

The rejection region is chosen so that the probability of the test statistic falling into it,if H₀is true,is _____.