Quiz Two Flashcards
Which of the following tools is not commonly used during the Measure Phase?
A. 5S Analysis
B. MSA
C. CPK Studies
D. Data Analysis
5S Analysis
A measure of average “spread” or variation, between data point and the mean is:
A. standard deviation
B. Range
C. Median
D. Mode
Standard Deviation
The Pearson Correlation Coeffcient (Choose all that apply)
A. IS a measure of the association between two variables
B. Is represented by R
C. Can range between -1 and + 1
D. Is an alternative to the p-valve
A, B, C
A one-sample t-test would be used when:
A. comparing two samples with each other
B. Comparing one sample mean with a targent adn the population standard deviation is not known
C. Comparing one sample mean with a targent and population standard deviation is known
D. Performing a standard deviation test
B. Comparing one sample mean with a target and population standard deviation is NOT known
In an Anova test, a p-value of .0000 signifies:
A. There is not sufficient evidence to reject the null hypothesiss that the samples are the same
B. there is statistical evidence of a difference between the samples and the null hypothesis can be rejected
C. The porportion of data that coorelated statistically with the mean can not be measured
D. The test is inconclusive
B. There is statistical evidence of a difference between the samples and the null hypothesis can be rejected
A paired T test is used when:
A. comparing sample variations
B. comparing the means of two samples
C. analyzing the same set of items that were measured under two different conditions
D. comparing two attribute variables
C. Analyzing the same set of items that were measured under two different conditions
What is the purpose of measurement system analysis (MSA)
A. to analyze the outcome of the variant inclusion
B. to assess whether or not the process is stable
C. To determine if the exclusive mean conclusion can be met
D. To determine the amount of variation contributed by the measurement system
D. To determine the amount of variation contributed by the measurement system
A discreet data type would be represented by which of the following statements (choose all that apply)
A. Can be continously divided into smaller and smaller units
B. Is represented by whle numbers or count data
C. Can be classified into categories
D. Includes many physical attributes like time, weight, and temperature
B and C
If we know that there is a linear cause and affect relationship between X and Y, what are we likely to see on a scatter diagram of x vs y?
A. A curved line
B. A straight line
C. Points whihc show a pattern of linear relationship
D. Predictors of other linear process variables (ie., X2, X3, X4)
NOT B
You are comparing this year’s premium freight to last year’s premium freight. The calculated p-value is 0.000. You thus
A. Reject the null hypothesiss that the two years are the same and conclude there is a statistical difference
B. You fail to reject the null hypothesis and assume the two years are the same
C. You conclude the last years premuim frieght was higher than this years
D. You concluded that last years premuim frieght was lower than this years.
A: Reject the null hypothesis that the two years are the same and conclude there is a statiscial difference
You need to record the location where paint defects are occurring on a large panel. A good data collection form to use would be
A. A check sheet
B. A Pareto Chart
C. A sanbar location sheet
D. A measles chart
D. A measles chart
What is the best description of the baseline performance of the process?
A. it defines the best the process has ever historcally performed
B. Using value-added time only, it calculates the current total cycle time
C. It defines the target performance of the process
D. Using historical data, it establishes the starting point from which to measure future improvements
D. Using histoical, data it establishes the stargeting point from which to measure future improvments
You have a sample set with n = 12 items. Choose the most correct statement.
A. You should use the range since n > 8
B. You should use the standard deviation since n > 8
C. You could use either range or standard deviation
B. You should use the standard deviation since n >8
Given a right skewed distribution, which of the following is correct?
A. The mode > median > mean
B. The mean > median > Mode
C. The median > mode > mean
D. The mean = median = mode
B. The mean > median > mode
In a normal distribution, what percentage of the data would you expect to find between +/– 2 standard deviations?
A. 68%
B. 50%
C. 95%
D. 99.70%
C. 95%
All the following are examples of attribute data, except
A. Wait Time
B. Gender
C. Pass/Fail
D. Percentage of patients in the ED with flu sx
A. Wait Time
An r-square value of 42.8% from regression analysis means:
A. The association b/t vairables is not significant
B. The association is slightly positive
C. 42.8% of the data can be explained by the regresssion model
D. None of the above is correct
C. 42.8% of the data can be explained by the regression model
An example of systematic sampling would be:
A. Chooosing your samples based on a random number generator
B. Choosing a proportional sample from each unit based on some base number such as the number of employees
C. Choosing every twentieth invoice or two invoices per hour
D. Choosing the first employee you run into every morning
C. Choosing every twentieth invoice or two invoices per hour
Which of the following graphical tools compares sample distribution characteristics such as median and range and identifies outliers?
A. Scatter diagram
B. Box Plot
C. Run Chart
D. Pareto Chart
B. Box Plot
What is process capability?
A. The ability of th eprocess to meet the customer requirements
B. Tells us how process centering and variation match the specifications to satisy the customer
C. Can be used to evaluate either continuous or attribute data
D. All of these
D. All of these
