/104
2032

SantΓ© Publique Preparation (Dr. Tol Bunkea)

 

1 / 104

1)

Below is the common screening test except one:

2 / 104

2)

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?

3 / 104

3)

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

4 / 104

4)

What is the correct answer about a point estimatestatement:

5 / 104

5)

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

6 / 104

6)

Which below statement is not correct:

7 / 104

7)

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?

8 / 104

8)

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

9 / 104

9)

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

10 / 104

10)

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

11 / 104

11)

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

12 / 104

12)

Population census is conducted through

13 / 104

13)

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

14 / 104

14)

αžαžΎαž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡αž‡αžΆαž•αŸ’αž“αŸ‚αž€αžšαž”αžŸαŸ‹ Descriptive statistics?

15 / 104

15)

Which answer below is not correct about the confidence interval:

16 / 104

16)

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

17 / 104

17)

αžαžΎαž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡αž‡αžΆαž•αŸ’αž“αŸ‚αž€αžšαž”αžŸαŸ‹ Descriptive statistics?

18 / 104

18)

What is the correct answer about a point estimate statement:

19 / 104

19)

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

20 / 104

20)

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

21 / 104

21)

The Positive Predictive Value was 40% means that:

22 / 104

22)

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:

23 / 104

23)

Statistic is a numerical quantity, which is calculated from:

24 / 104

24)

Which below statement is not correct:

25 / 104

25)

The negative predictive value of a test decreases:

26 / 104

26)

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

27 / 104

27)

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

28 / 104

28)

On the statements below which are validstatements of probability:

29 / 104

29)

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

30 / 104

30)

The width of a confidence interval is influenced by:

31 / 104

31)

The standard error of the mean of a sample is:

32 / 104

32)

In descriptive statistics, we study:

33 / 104

33)

What is the correct statement of diagnostic test:

34 / 104

34)

Which below statement is not correct:

35 / 104

35)

A parameter is a measure which is computed from

36 / 104

36)

If an event has a probability of 0.1 it is:

37 / 104

37)

In descriptive statistics, we study:

38 / 104

38)

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

39 / 104

39)

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

40 / 104

40)

Which below statement is not correct:

41 / 104

41)

The Positive Predictive Value depends on:

42 / 104

42)

On the statements below which are valid statements of probability:

43 / 104

43)

αžŸαŸ’αžαž·αžαž·αžœαž·αž‘αŸ’αž™αžΆ (statistics) αž˜αžΆαž“αž…αŸ‚αž€αž…αŸαž‰αž‡αžΆ

44 / 104

44)

Chose the incorrect statement describe the diagnostic test:

45 / 104

45)

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

46 / 104

46)

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

47 / 104

47)

A positive predictive value depend on:

48 / 104

48)

Which answer below is correct about the confidence interval:

49 / 104

49)

In statistics, a population consists of

50 / 104

50)

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?

51 / 104

51)

The meaning of reliability of a test is:

52 / 104

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

53 / 104

53)

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

54 / 104

54)

On the statements below what is valid statements of probability:

55 / 104

55)

If an event is impossible it has a probability of:

56 / 104

56)

On the statements below what is valid statements of probability:

57 / 104

57)

Which statement is not true about confidence intervals?

58 / 104

58)

Reliability of a test means that:

59 / 104

59)

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

60 / 104

60)

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

61 / 104

61)

What is the statement of specificity of a diagnostic test:

62 / 104

62)

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:

63 / 104

63)

Which below statement is not correct:

64 / 104

64)

Which of these is most likely to happen?

65 / 104

65)

The width of a confidence interval is influenced by:

66 / 104

66)

The Negative Predictive Value was 98% means that:

67 / 104

67)

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

68 / 104

68)

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

69 / 104

69)

What is the wrong interpretation of 95% confidence interval:

70 / 104

70)

The Positive Predictive Value of a test increases:

71 / 104

71)

What is the correct statement of screening test:

72 / 104

72)

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

73 / 104

73)

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

74 / 104

74)

In inferential statistics, we study

75 / 104

75)

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

76 / 104

76)

ΞΌ is an example of a

77 / 104

77)

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

78 / 104

78)

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

79 / 104

79)

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:

80 / 104

80)

A negative predictive value of a test decreases as:

81 / 104

81)

If an event has a probability of 0.8 it is:

82 / 104

82)

We measure the sample using statistics in order to:

83 / 104

83)

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

84 / 104

84)

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

85 / 104

85)

In statistics, a sample mean:

86 / 104

86)

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

87 / 104

87)

What is the correct answer about a point estimatestatement:

88 / 104

88)

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

89 / 104

89)

On the statements below which are validstatements of probability:

90 / 104

90)

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:

91 / 104

91)

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

92 / 104

92)

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

93 / 104

93)

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

94 / 104

94)

A positive predictive value depend on:

95 / 104

95)

What is the correct answer about a confidence interval statement:

96 / 104

96)

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

97 / 104

97)

What is the statement of sensitivity of a diagnostic test:

98 / 104

98)

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

99 / 104

99)

The standard error of the mean of a sample is:

100 / 104

100)

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

101 / 104

101)

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

102 / 104

102)

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:

103 / 104

103)

A positive predictive value of a test increases as:

104 / 104

104)

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

Your score is

The average score is 86%

 

Facebook
0%

Any comments?