Magnetic Recording - Engineering Statistics Certification

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Magnetic Recording - Engineering Statistics Certification - Quiz

This examination will asses the learner's knowledge and understanding of the topic Engineering Statistics and will provide certification upon completion.


Questions and Answers
  • 1. 

    Known as "Bell shaped curved" or normal distribution:

    • A.

      A. range

    • B.

      B. Gaussian Distribution

    • C.

      C. mode

    • D.

      D. mean

    Correct Answer
    B. B. Gaussian Distribution
    Explanation
    Gaussian Distribution is commonly referred to as "Bell shaped curve" or normal distribution. It is a statistical distribution that is symmetric and bell-shaped, with the majority of data points clustering around the mean. This distribution is widely used in various fields to model and analyze data, as it allows for easy interpretation and understanding of the data's characteristics.

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  • 2. 

    Which of the following is the most common example of a situation for which the main parameter of interest is a population proportion? :

    • A.

      A. A binomial experiment

    • B.

      B. A normal experiment

    • C.

      C. A randomized experiment

    • D.

      D. An observational study

    Correct Answer
    A. A. A binomial experiment
    Explanation
    A binomial experiment is the most common example of a situation where the main parameter of interest is a population proportion. In a binomial experiment, there are two possible outcomes (success or failure) and the parameter of interest is the proportion of successes in the population. This can be seen in situations such as flipping a coin (success = heads, failure = tails) or conducting a survey with a yes/no question (success = yes, failure = no). The proportion of successes in these experiments is the main parameter that researchers are typically interested in estimating or comparing.

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  • 3. 

    This is the main part of experiment where output depends on the input variables:

    • A.

      A. Input

    • B.

      B. Process

    • C.

      C. extra process

    • D.

      D. variable

    Correct Answer
    B. B. Process
    Explanation
    The correct answer is b. Process because in an experiment, the main part where the output depends on the input variables is the process. The process refers to the specific actions or steps taken to manipulate the input variables and observe the resulting output. It is during this stage that the input variables are transformed or manipulated in some way, leading to the observed outcomes or results. The process is crucial in determining the cause-effect relationship between the input variables and the output, making it the main part of the experiment.

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  • 4. 

    'S' in NIST means what:

    • A.

      A. Sigma

    • B.

      B . Size

    • C.

      C. Standard

    • D.

      D. Sample

    Correct Answer
    C. C. Standard
    Explanation
    The letter 'S' in NIST stands for "Standard". NIST, which stands for National Institute of Standards and Technology, is a federal agency that develops and promotes measurement standards and technology in the United States. The term "Standard" accurately represents the role of NIST as it establishes and maintains a wide range of standards for various industries and sectors, ensuring consistency, accuracy, and reliability in measurements and technical practices.

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  • 5. 

    According to the speaker, this is the first step to solve multi variable problems? :

    • A.

      A. Look at the data

    • B.

      B. create a theoretical model

    • C.

      C. answers to questions obvious

    • D.

      D. Estimate the actual model

    Correct Answer
    A. A. Look at the data
    Explanation
    The speaker suggests that the first step to solve multi variable problems is to look at the data. This implies that before creating a theoretical model or estimating the actual model, it is important to gather and analyze the available data. By examining the data, one can gain insights and identify patterns or relationships between variables, which will then inform the creation of a theoretical model or the estimation of the actual model.

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  • 6. 

    'D' on DOE means what :

    • A.

      A. Down

    • B.

      B. Design

    • C.

      C. Drop

    • D.

      D. deep

    Correct Answer
    B. B. Design
    Explanation
    The letter 'D' on DOE stands for Design. The acronym DOE typically refers to Design of Experiments, which is a systematic and efficient approach to conduct experiments and analyze data in order to optimize and improve processes or products. Therefore, the correct answer is b. Design.

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  • 7. 

    On scatter plot data, narrow elliptical represents:

    • A.

      A. weak correlation

    • B.

      B. strong correlation

    • C.

      C. no correlation

    Correct Answer
    B. B. strong correlation
    Explanation
    A narrow elliptical shape on a scatter plot indicates that there is a strong correlation between the two variables being plotted. This means that as one variable increases, the other variable also tends to increase or decrease in a consistent manner. The narrowness of the ellipse suggests that the relationship between the variables is tightly clustered around a straight line, indicating a strong and predictable relationship between them.

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  • 8. 

    In ANOVA table, higher F-stat means:

    • A.

      A. insignificant

    • B.

      B. more significant

    • C.

      C. no correlation

    • D.

      D. equal

    Correct Answer
    B. B. more significant
    Explanation
    In ANOVA table, a higher F-statistic indicates a larger difference between the group means compared to the variation within the groups. This means that the likelihood of obtaining such a large difference by chance alone is very low, suggesting that the observed difference is more likely to be a true effect and not due to random variation. Therefore, a higher F-statistic is associated with a more significant result.

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  • 9. 

    ''C' on OCAP means what:

    • A.

      A. capital

    • B.

      B. characteristic

    • C.

      C. control

    • D.

      D. center

    Correct Answer
    C. C. control
    Explanation
    The letter "C" on OCAP stands for "control." In the context of OCAP, control refers to the ability to manage or regulate something. This could include controlling the functions and features of a device or system, such as a remote control for a television or a control panel for a computer program. The other options, "capital," "characteristic," and "center," do not accurately represent the meaning of "C" in OCAP.

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  • 10. 

    ''P' on P-chart means what:

    • A.

      A. Plot

    • B.

      B. Proportion

    • C.

      C. Population

    • D.

      D. part

    Correct Answer
    B. B. Proportion
    Explanation
    The letter "P" on a P-chart represents "proportion." In statistical process control, a P-chart is used to monitor the proportion of defective items in a process. It is a type of control chart that helps identify any variations or shifts in the proportion of defects over time. By tracking the proportion of defects, organizations can take corrective actions to improve the quality of their processes and products. Therefore, "proportion" is the most appropriate interpretation for "P" on a P-chart.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 27, 2017
    Quiz Created by
    TeamPhoKM
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