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2032

Santé Publique Preparation (Dr. Tol Bunkea)

 

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1)

If the diagnostic (confirmatory) test is expensive or invasive the best diagnostic test is:

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2)

What is the correct answer about a point estimatestatement:

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3)

On the statements below which are validstatements of probability:

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4)

Which answer below is correct about the confidence interval:

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5)

In a study of Cambodian people over 65 years of age, it is found that 255 have heart disease and 2302 do not. If a Cambodian over 65 years of age is randomly selected, what is the estimated probability that he or she has heart disease:

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6)

Which below statement is not correct:

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7)

On the statements below what is valid statements of probability:

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8)

What is the wrong interpretation of 95% confidence interval:

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9)

What is the probability of getting an odd number when you roll a dice?

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10)

If an event is impossible it has a probability of:

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11)

μ is an example of a

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12)

Which statement is not true about confidence intervals?

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13)

The branch of biostatistics that deals with testing of hypothesis, making predictions using data collected is called:

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14)

If a negative predictive value was 98%, it means that:

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15)

តើអ្វីខ្លះជាផ្នែករបស់ Descriptive statistics?

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16)

A parameter is a measure which is computed from

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17)

In inferential statistics, we study

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18)

What is the correct statement of sensitivity of a screening test:

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19)

In statistics, a sample mean:

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20)

All statements below are correct to describe the positive predictive value of a screening test except one:

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21)

You asked five of your classmates about their height. On the basis of this information, you stated that the average height of all students in your university or college is 1.67 meters. This is an example of:

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22)

The width of a confidence interval is influenced by:

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23)

If a positive predictive value was 44%, it means that:

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24)

The Positive Predictive Value was 40% means that:

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25)

In descriptive statistics, we study:

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26)

A screening test result for cervical cancer show that PPV= 67%. It means that:

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27)

Which branch of statistics deals with the techniques that are used to organize, and summarize and simplify data:

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28)

Which of the statements is true if a particular event has a probability of 10%?

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29)

Which below statement is not correct:

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30)

What is the correct statement of specificity of a screening test:

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31)

On the statements below which are validstatements of probability:

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32)

What is the statement of sensitivity of a diagnostic test:

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33)

We measure the sample using statistics in order to:

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34)

When the new drug was clinically tested, 117 patients reported headaches and 617 did not. Based on this sample what is the probability that a new drug user will experience a headache:

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35)

What is the statement of negative predictive value of a diagnostic test:

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36)

If the penalty for missing a case is high (e.g., the disease is fatal and treatment exists, or disease easily spreads) the best diagnostic test is:

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37)

Below is the common screening test except one:

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38)

Statistic is a numerical quantity, which is calculated from:

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39)

Which below statement is not correct:

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40)

Since the population size is always larger than the sample size, then the sample statistic

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41)

A screening test result for cervical cancer show that NPV= 99%. It means that:

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42)

A negative predictive value of a test decreases as:

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43)

The factors that determine the width of a confidence interval are except one:

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44)

Which of the following statements is true about the standard error of a proportion?

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45)

In statistics, a population consists of

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46)

Which below statement is not correct:

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47)

Which of these is most likely to happen?

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48)

The Negative Predictive Value was 98% means that:

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49)

The negative predictive value of a test decreases:

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50)

The primary reason for selecting a sample from a population is:

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51)

The width of a confidence interval is influenced by:

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52)

Which below statement is not correct:

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53)

The Positive Predictive Value of a test increases:

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54)

Positive Predictive Value primarily depends on (chose the incorrect answer):

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55)

The upper bound and lower bound of confidence interval are calculated using (chose the correct answer):

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56)

If we want less chance of error we could calculate (chose the correct answer):

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57)

A group of 100 people are asked to state their favourite colour. 60 say blue. This experiment says that the probability of someone choosing blue is:

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58)

On the statements below which are valid statements of probability:

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59)

If the variance of a data set is correctly computed with the formula using n – 1 in the denominator, which of the following is true?

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60)

Students had attended a blood donor session at the University of Health Science when a new donor arrived. Blood can be classified into 4 groups: O, A, B and AB. The table below shows the number of people in each blood group. What is the probability that the next donor belongs to blood group O?

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61)

The height of a student is 1.62 meters. This is an example of:

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62)

If an event has a probability of 0.1 it is:

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63)

What is the statement of positive predictive value of a diagnostic test:

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64)

Which answer below is not correct about the confidence interval:

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65)

What is the correct answer about a point estimatestatement:

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66)

If a specificity of a screening test was 89%, it means that:

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67)

If we want higher chance of error we could calculate (chose the correct answer):

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68)

A confidence interval is describe (chose the correct answer):

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69)

What is the correct answer about a confidence interval statement:

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70)

A normal distribution curve is determined by the (chose the correct answer):

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71)

What is the correct statement of validity of a screening test:

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72)

What is the statement of specificity of a diagnostic test:

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73)

The meaning of reliability of a test is:

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74)

ស្ថិតិវិទ្យា (statistics) មានចែកចេញជា

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75)

On the statements below what is valid statements of probability:

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76)

A positive predictive value of a test increases as:

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77)

In descriptive statistics, we study:

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78)

What is the correct statement of positive predictive value (PPV) of a screening test:

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79)

If a sensitivity of a screening test was 80%, it means that:

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80)

What is the correct statement of diagnostic test:

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81)

The width of a confidence interval will decrease when which of the following changes occur:

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82)

What is the correct statement of screening test:

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83)

Reliability of a test means that:

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84)

What is the correct interpretation of 95% confidence interval below:

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85)

Chose the incorrect statement describe the diagnostic test:

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86) Confidence intervals are calculated for proportions, rates, risk ratios, odds ratios, and other epidemiologic measures:

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87)

When data are collected in a statistical study for only a portion or subset of all elements of interest we are using

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88)

The Positive Predictive Value depends on:

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89)

A confidence interval estimate is (chose the correct answer):

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90)

What is the correct interpretation of 95% confidence interval below:

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91)

A positive predictive value depend on:

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92)

The standard error of the mean of a sample is:

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93)

តើអ្វីខ្លះជាផ្នែករបស់ Descriptive statistics?

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94)

A positive predictive value depend on:

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95)

If an event has a probability of 0.8 it is:

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96)

Population census is conducted through

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97)

All statements below are correct to describe the negative predictive value of a screening test except one:

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98)

A numerical value used as a summary measure for a sample, such as sample mean, is known as a

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99)

What is the correct answer about a point estimate statement:

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100)

What is the correct statement of negative predictive value (NPV) of a screening test:

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101)

The standard error of the mean of a sample is:

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102)

The director of the blood bank wants to know whether blood donors who test positive should be informed of their positive HIV status on the basis of this test. What do you need to calculate in order to help you advise the director?

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103)

What is the correct interpretation of 95% confidence interval below:

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104)

A population parameter is likely to occur (chose the correct answer):

Your score is

The average score is 86%

0%

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