A fan blade is specified by length and thickness. While sampling, it was found that for one particular blade, the length was non-conforming while the thickness was as per specifications. Should the blade be considered non-conforming for construction of a p chart?
1.Yes
2.No
3.Mixture
4.Cyclic Pattern
Posted Date:-2021-12-10 15:15:31
A multiple-choice test has 30 questions. There are 4 choices for each question. A student who has not studied for the test decides to answer all the questions randomly by guessing the answer to each question. Which of the following probability distributions can be used to calculate the student's chance of getting at least 20 questions right?
1.Exponential
2.Normal
3.Poisson
4.Binomial
Posted Date:-2021-12-10 15:36:37
A two-tailed test is one where:
1.results in only one direction can lead to rejection of the null hypothesis
2.negative sample means lead to rejection of the null hypothesis
3.results in either of two directions can lead to rejection of the null hypothesis
4.no results lead to the rejection of the null hypothesis
Posted Date:-2021-12-10 15:37:34
Consider for a process in control, the value of alpha is .0015. What is the value of the average run length?
1.666 ( 1/alpha gives us an estimate of average run length)
2.555
3.444
4.None of the above
Posted Date:-2021-12-10 15:22:22
Consider that for a particular process, the p has shifted to .4 and the process has gone out of control. The corresponding value of beta is found to be .3356. The value of Average Run Length is:
1.2.5
2.1.5 ((1/1-beta) provides us with average run length)
3.1.0
4.2.7
Posted Date:-2021-12-10 15:16:12
Ease of repair is associated with _______ dimension of quality.
1.Serviceability
2.Performance
3.Durability
4.Perceived Quality
Posted Date:-2021-12-10 15:05:22
Effective quality control results in:
1.Increase in customer satisfaction
2.Lower cost
3.None of the above
4.both a and b
Posted Date:-2021-12-10 15:28:55
Effective quality improvement can be instrumental in:
1.Increasing productivity
2.Reducing cost
3.Both a and b
4.None of the above
Posted Date:-2021-12-10 15:29:18
Failure Mode and Effects Analysis, which prioritizes different sources of error, is used in ______ stage.
1.Define
2.Measure
3.Improve
4.Analyze
Posted Date:-2021-12-10 15:33:03
Failure Mode and Effects Analysis, which prioritizes different sources of error, is used in _______ stage.
1.Define
2.Measure
3.Improve
4.Analyze
Posted Date:-2021-12-10 15:12:31
For a c chart, the LCL comes out to be -.7. The value of LCL that should be used is:
1.-.7
2.0
3.1
4.None of the above
Posted Date:-2021-12-10 15:28:03
For a c chart, the OC curve plots the _______ against ________
1.Probability of Type 2 error, true mean number of defects
2.Probability of Type 1 error, true mean number of defects
3.Probability of Type 1 error, true total number of defects
4.Probability of Type 2 error, true total number of defects
Posted Date:-2021-12-10 15:04:35
For a double sampling plan the probability of acceptance on the combined samples is calculated as:
1.Maximum of probability of acceptance of first and second sample
2.Product of probability of acceptance of first and second sample
3.Average of probability of acceptance of first and second sample
4.Sum of probability of acceptance of first and second sample
Posted Date:-2021-12-10 15:24:53
For a Poisson distribution:
1.The mean is greater than the variance
2.The mean is less than variance
3.The mean is equal to the variance
4.Cannot be determined
Posted Date:-2021-12-10 15:28:28
For a process which is six sigma complaint, the percentage of products within specifications is:
1.95.20%
2.99.73%
3.99.10%
4.96.78%
Posted Date:-2021-12-10 15:23:35
For an ideal OC curve the probability of acceptance for lot fraction defective less than .01 is _______
1.Equal to 1
2.Less than 1
3.Greater than 1
4.0
Posted Date:-2021-12-10 15:31:34
For new product development, the chosen methodology should be
1.DMADV
2.DMAIC
3.Structured Design Methodology
4.DMIE
Posted Date:-2021-12-10 15:06:33
Given L=3 and p=.03, estimate the sample size that can be used for construction of a p chart.
1.534
2.321
3.123
4.291 ((1-p)∗L2/p gives us an estimate of sample size)
Posted Date:-2021-12-10 15:02:54
he South African government is concerned about the high incidence of HIV/AIDS in South Africa. They wish to estimate the true number of people in South Africa who are HIV positive. A random sample of 5000 people were tested and 1980 of them were HIV positive. What is the statistic?
1.The 5000 people sampled
2.All the people in South Africa
3.Impossible to calculate from the given information
4.The 1980 people sampled who were HIV positive
Posted Date:-2021-12-10 15:33:55
Identification of customers and listening to the Voice of Customer (VoC) are a part of:
1.Quality Assurance
2.Quality Planning
3.Quality Control and Improvement
4.Quality Execution
Posted Date:-2021-12-10 15:04:58
Identify the charts which might give an indication of process going out of control (before the process has actually changed)
1.X bar and c
2.P and c
3.R and u
4.X bar and R
Posted Date:-2021-12-10 15:22:48
If the value of D4 = 2.547, D3=0, then what is the UCL and LCL for the R chart?
1.UCL=1.5, LCL=.4
2.UCL= 1.2, LCL=.2
3.UCL=1.5, LCL=0
4.UCL=1.6, LCL=0
Posted Date:-2021-12-10 15:25:48
If we want to detect small process shifts using x bar chart, we should use a sample size of:
1.Less than 5
2.5-10
3.10-15
4.15-25
Posted Date:-2021-12-10 15:32:02
In a double sampling plan, let d1 be the number of defects in the first sample and d2 be the number of defects in the second sample. Let c2 be the acceptance number for both samples. The condition for rejection is:
1.D1+d2<c2
2.D1+d2>c2
3.D1+d2>c2
4.D1∗d2<c2
Posted Date:-2021-12-10 15:08:40
In a six sigma improvement project the least experienced individuals are:
1.Green Belt
2.Black belts
3.Red Belts
4.Master Black Belts
Posted Date:-2021-12-10 15:12:55
In case someone is interested in process standard deviation, he should construct the ______________ chart.
1.X bar
2.R chart
3.S chart
4.None of these
Posted Date:-2021-12-10 15:34:36
In critical path method, earliest start is the:
1.The largest Earliest Finish leading to that task
2.The smallest Earliest Finish leading to that task
3.Average of Earliest Finish leading to that task
4.Whenever the task can start
Posted Date:-2021-12-10 15:30:38
In DMAIC, redesigning of process to either remove bottlenecks or to reduce waste takes place in the ________ stage.
1.Define
2.Measure
3.Improve
4.Control
Posted Date:-2021-12-10 15:06:58
In phase 1 of control chart usage, if a point is outside the control limits and some assignable cause is found for the point, then we should:
1.Discard the point but do not recalculate control limits
2.Discard the point and recalculate the control limit
3.Do not discard the point
4.Cannot be determined
Posted Date:-2021-12-10 15:02:30
In ______________ step of Quality Function Deployment, product or service requirements are collected and analysed through techniques like market research.
1.Identify Customer Attributes
2.Identify Design Attributes / Requirements
3.Conduct an Evaluation of Competing Products.
4.Evaluate Design Attributes and Develop Targets
Posted Date:-2021-12-10 15:24:25
Lot tolerance percent defective (LTPD) is a level of lot quality specified by the _____
1.Consumer
2.Producer
3.Supplier
4.Sampling Plan
Posted Date:-2021-12-10 15:13:48
Machine wear and tear is __________ source of variation.
1.Random
2.Natural
3.Assignable
4.Cannot be determined
Posted Date:-2021-12-10 15:14:13
Mistake proofing of process is done in the ______ stage of DMAIC.
1.Define
2.Measure
3.Improve
4.Control
Posted Date:-2021-12-10 15:24:01
Pattern in control charts which show the tendency to cluster around central line is termed as:
1.Stratification
2.Mixture
3.Cyclic pattern
4.Shift in process level
Posted Date:-2021-12-10 15:14:37
Process capability ratio is expressed as:
1.USL+LSL/6σ
2.USL-LSL/6σ
3.USL-LSL/3σ
4.USL-LSL/σ
Posted Date:-2021-12-10 15:27:14
Producers risk can be defined as:
1.The probability of rejecting a good lot
2.The probability of accepting a bad lot
3.The probability of accepting a good lot
4.The probability of rejecting a bad lot
Posted Date:-2021-12-10 15:30:13
Q-Q plot is used to check:/p>
1.Normality of the dataset
2.Number of defects
3.Process mean
4.Process standard deviation
Posted Date:-2021-12-10 15:10:34
SIPOC diagram, used for understanding the flow in a process is used in _______ stage of DMAIC.
1.Define
2.Measure
3.Analyze
4.Improve
Posted Date:-2021-12-10 15:05:47
Suppose box A contains 4 red and 5 blue coins and box B contains 6 red and 3 blue coins. A coin is chosen at random from the box A and placed in box B. Finally, a coin is chosen at random from among those now in box B. What is the probability a blue coin was transferred from box A to box B given that the coin chosen from box B is red?
1.15/29
2.14/29
3.1/2
4.7/10
Posted Date:-2021-12-10 15:34:58
The chart used for tracking number non-conforming is:
1.P
2.Np
3.X bar
4.None of the above
Posted Date:-2021-12-10 15:04:06
The chi-square test can be too sensitive if the sample is:
1.very small
2.very large
3.homogeneous
4.predictable
Posted Date:-2021-12-10 15:37:58
The concept of rational sub group means that subgroups or samples be selected such that if assignable causes are present the chances for differences between subgroups will be _________
1.minimized
2.maximized
3.neutralized
4.optimized
Posted Date:-2021-12-10 15:09:37
The critical path method determines the _______ path from the beginning to the end of the project.
1.Shortest
2.Quickest
3.Longest
4.Middle
Posted Date:-2021-12-10 15:07:20
The four phases of the Shewart cycle are:
1.Plan, Do, Scan, Implement
2.Plan , Act , Do, Control
3.Plan, Do, Act, Check
4.Implement, Design, Control, Plan
Posted Date:-2021-12-10 15:23:15
The OC curve provides a measure of the _______ of the control chart.
1.Sensitivity
2.Duality
3.Process mean
4.Process standard deviation
Posted Date:-2021-12-10 15:11:13
The Operating characteristic curve shows the relationship between the probability of acceptance (on y axis) and ______ (on x axis).
1.Proportion defective
2.Proportion acceptable
3.Number of lots
4.Size of lot
Posted Date:-2021-12-10 15:08:19
The parameters of s2 chart is specified using:
1.Normal Distribution
2.Geometric Distribution
3.Binomial Distribution
4.Chi-square distribution
Posted Date:-2021-12-10 15:32:25
The thickness of aluminum sheet is specified to be of 6±2 mm. The Upper Specification Limit and Lower Specification Limit for the sheet are:
1.4mm, 8mm
2.8mm, 4mm
3.6mm, 8mm
4.4mm, 6mm
Posted Date:-2021-12-10 15:11:59
The value of Var(3 - 4X) is:
1.5120 / 9
2.1280 / 81
3.5120 / 81
4.1280 / 9
Posted Date:-2021-12-10 15:36:12
The _______, diagram starts with one item which then branches of into two or more items. This diagram is used to breakdown broad categories into finer levels of detail.
1.Affinity
2.Tree
3.Relations
4.matrix
Posted Date:-2021-12-10 15:13:24
Two major components of fitness of use are Quality of Design and ______
1.Quality of Conformance
2.Quality of Service
3.Quality of Specification
4.Quality of Manufacturing
Posted Date:-2021-12-10 15:06:10
Typically in a cause and effect diagram, the _______ is used for classification of causes in the service industry.
1.5Ms
2.8Ps
3.5Ss
4.6Ps
Posted Date:-2021-12-10 15:29:46
When output product of several sources is fed into a common stream, the pattern of the control chart expected is:
1.Stratification
2.Trend
3.Mixture
4.Cyclic Pattern
Posted Date:-2021-12-10 15:15:02
Which of the following is not a type of attribute chart?
1.P chart
2.C chart
3.U char
4.X bar chart
Posted Date:-2021-12-10 15:11:37
Which of the following is not a use of arrow diagram:
1.Determining the best schedule for the entire project
2.Potential Scheduling problem and solution
3.Calculate critical path of the project
4.Identifying defects in a process
Posted Date:-2021-12-10 15:31:03
Which of the following is NOT true about the standard error of a statistic?
1.The standard error measures, roughly, the average difference between the statistic and the population parameter.
2.The standard error is the estimated standard deviation of the sampling distribution for the statistic.
3.The standard error can never be a negative number.
4.The standard error increases as the sample size(s) increases.
Posted Date:-2021-12-10 15:37:02
Which of the following is the correct combination of specifications while designing a control chart:
1.Sample size, Frequency of sampling, specification limit
2.Sample size, Frequency of sampling, Number of defects
3.Sample size, Specification limit, process standard deviation
4.Sample size, Process mean, specification limit
Posted Date:-2021-12-10 15:27:38
Which of the following is the correct combination of specifications while designing a control chart?
1.Sample size, Frequency of sampling, specification limit
2.Sample size, Frequency of sampling, Number of defects
3.Sample size, Specification limit, process standard deviation
4.Sample size, Process mean, specification limit
Posted Date:-2021-12-10 15:33:27
While random variability in a system can be removed by ____, non-random variability requires _____
1.Operator or management action, Improvement in the system
2.Improvement in the system, operator or management action
3.Statistical Quality Control, Quality Checks
4.None of the above
Posted Date:-2021-12-10 15:09:09
________ can be defined as small subset of a lot.
1.Defect
2.Fraction Acceptable
3.Sample
4.Acceptance Number
Posted Date:-2021-12-10 15:25:23