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informatics
  • midori shimizu

  • 問題数 59 • 1/17/2024

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    問題一覧

  • 1

    The following statements are true about DICOM

    it is a standard for managing data obtained through medical imaging, it includes a communication protocol, it includes a definition of data format, it is a module in HIS

  • 2

    Personal health record is

    an application through which patients can securely and confidentially access, manage and share their health information

  • 3

    The WWW acronym is found in

    the web page access syntax

  • 4

    Regarding discrete quantitative variables

    the frequency distribution can be obtained directly by counting how many times each value appears, the variable's values are always in order, they can be graphically represented using a histogram, they are the result of a measurement or are obtained by counting

  • 5

    Estimating of data variability can be done with

    standard deviation, range, variance

  • 6

    The majority of medical data follow

    positively skewed distribution, unimodal distributions, symmetrical distribution

  • 7

    The following statements about the Z scale are true

    it allows efficient presenting of results, scores from all scales can be converted to a score on the Z scale, it is standard scale in statistics

  • 8

    The p-value is

    the end result of hypothesis testing, not the probability that the null hypothesis is true

  • 9

    A statistically significant difference

    is always obtained when the p value is less than 0.05, happens if the data is not consistent with the null hypothesis

  • 10

    The following are true about linear regression

    it is an equation of a straight line, the expression result is the outcome or dependent variable

  • 11

    The correlation coefficient

    is sometimes called the Pearson's correlation coefficient, is negative when small values of a variable are associated to high values of another variables

  • 12

    Related to their coverage (which are also wireless), the data transmission networks are classified as

    WAN, MAN, LAN, PAN

  • 13

    Wired

    ethernet, fiber channel, history (=token ring, ATM, frame relay)

  • 14

    Cloud computing deployment models

    public, private, hybrid, community

  • 15

    HIS – hospital information system includes functionality for

    patient management in hospitals or clinics, the security of the data system, managing lab tests, managing patient-related costs

  • 16

    HIS must take into account

    all aspects of functioning of a hospital, all activities of the hospital groups, all internal groups of people, all groups of external foreign individuals

  • 17

    The following applications are used for statistically analyzing data

    EpiInfo, MS excel, statistica

  • 18

    The following can be associated with the “Cloud Computing” term

    distributed group of computing services, distributed group of applications, distributed group for data storage

  • 19

    The standard error

    is used to state how close the computed statistical value is to the real value, is the standard deviation of the sample distribution

  • 20

    Student’s t-test

    has a statistic that follows student’s t distribution, can be represented by a graphical representation of normality, can be applied to small sample sizes

  • 21

    The following statements about categorical data are true

    an extension of binary data to include more than 2 possible values, it can have only two values, ‘’yes’’ or ‘’no’’, it is either nominal or ordinal categorical data

  • 22

    Estimating of data variability can be done with

    interquartile range, standard deviation

  • 23

    The WWW acronym is

    a set of standards used to tag the elements of a hypertext document, a meta-language widely used today to define particular types of ‘’computerized’’ complex documents, a web browser used to view web pages, a system of interlinked hypertext documents that can be accessed via the Internet

  • 24

    The following statements about the z score are true

    convert observation from different distributions with different measurement scales to comparable units, it can’t be used to compute z-scores for data arising from any type of distribution, it is a measure of the relative distance of a single observation in a data distribution relative to the mean of the distribution

  • 25

    Which from the following are Cloud Computing deployment models

    public, hybrid

  • 26

    HIS (Health Information System) must take into account

    all aspects of functioning of a hospital, all activities of the hospital groups, all internal groups of people, all groups of external, foreign individuals

  • 27

    The following statements are true

    most medical data follows unimodal distributions, most medical data follows positively skewed distributions

  • 28

    The following statements are true about p-value

    is the end result of hypothesis testing, estimates intervals with different levels of confidence

  • 29

    The standard deviation is

    the average of the square of the deviations about the sample mean, the square root of the variance

  • 30

    The following statements are true about central tendency

    the median is the second quartile, the three quartiles divide the distribution into four equal parts, the most frequently occurring value is called the mode of the distribution

  • 31

    The following statement is true about samples

    the characteristics of the sample should mimic those of the population

  • 32

    The following types of data are used by HIS

    patient data, administrative data

  • 33

    The correlation coefficient

    can have values between 1 and -1, is zero when is no linear relationship between variables, has a maximum value of 1 and a minimum value of -1

  • 34

    Which of the following examples belong to the database group

    a .txt file with daily blood glucose measurements of a patient, a .doc file with the list of shifts on surgery department, a .xls file with the grades to discipline Medical Informatics

  • 35

    The 68-95-99.7 rule for the Normal Distribution

    can be applied only if the sampled data follows a normal distribution, can be represented using a graphical representation of normality

  • 36

    The data structures can be one of the following types

    flat, object-oriented, hierarchical

  • 37

    A DBMS (Data Base Management System) does not allow

    unrestricted access to persistent data

  • 38

    Related to their coverage, the data transmission networks are classified as

    PAN (Personal Area Network), MAN (Metropolitan Area Network)

  • 39

    A DBMS (Data Base Management System) provides users

    a way of storing data, a way to access data

  • 40

    The following is true about simple linear regression

    the intercept and the slope are parameters of the linear regression equation, it is used to predict one variable y, based on an observed variable, x, is is an equation of a straight line, it involves choosing the line that minimizes the distance from the point to itself in the y direction

  • 41

    90% confidence intervals

    can potentially be computed in different ways, depending on the problems

  • 42

    The following are true about linear regression

    it is a module in HIS

  • 43

    Estimating of data variability can be done with

    variance , interquartile range, standard deviation

  • 44

    The following statements about the WWW acronym are true

    it is a system of interlinked hypertext documents that can be accessed via the internet

  • 45

    The following statements are true

    most medical data follows positively skewed distributions, if the sail on the right is not of similar length to the tail on the left the distribution is skewed, if the tail on the right is of similar length to the tail on the left the midline the mean and the mode are equal

  • 46

    The following statements are true about p-value

    shows strong evidence to reject the null hypothesis if it has a value below 0.05, is the end result of hypothesis testing, estimates intervals with different levels of confidence

  • 47

    The standard deviation is

    the square of average the of the deviation about the sample mean, the square root of the variance

  • 48

    The following statements are true about central tendency

    in a normal distribution mean median and module are equal, the most frequently occurring value is called the mode of the distribution

  • 49

    The following statements are true about samples

    the characteristics of the sample should mimic those of the population, a sample is smaller than the population, the central limit theorem refers to the sampling distribution, the samples can be randomly generated

  • 50

    The following types of data are not used by HIS

    medical terminology dictionaries, environmental data

  • 51

    The following statements about the normal distribution are true

    it is a symmetrical distribution

  • 52

    Which from the following are Cloud Computing deployment models

    private, hybrid

  • 53

    The standard deviation is

    the average of the square of the deviations about the sample mean, the square root of the variance

  • 54

    The correlation coefficient

    is zero when is no relationship between variables

  • 55

    Which of the following examples belong to the database group

    a dbf file with the phone number of students

  • 56

    The number of individuals having a specific quality is called

    the frequency or absolute frequency

  • 57

    The following are true about the boxplots

    it is a tool to display key characteristics of a dataset

  • 58

    The confidence intervals

    determine a range that is likely to contain the true population value, can be interpreted as a range of plausible vales for the unknown truth

  • 59

    The following statements are true about samples

    the characteristics of the sample should mimic those of population, a sample is smaller than the population