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YOUR TECHNICAL EVALUATION

Complete the MSG1 multiple-choice quizzes to find out the training appropriate to you :

1. Which of the following statements are true? | ||

a. The median is the most frequently observed value. | ||

b. Half of the results are less than or equal to the median. | ||

c. On a small sample, the median is impacted by outliers | ||

d. The median and the mean are always very close. | ||

e. The median, second quartile, 5th decile and 50th percentile are always the same. | ||

2. The following values were obtained: 12 – 6 – 12 – 8 – 10 | ||

a. What is the mean ? | ||

b. What is the median ? | ||

c. What is the mode ? | ||

d. What is the range ? | ||

3. Which of the following statements are true? | ||

a.The 95% confidence interval associated to the mean indicates the interval in which the “true” mean has a 95% probability to be. | ||

b. The width of the confidence interval decreases as the sample size increases. | ||

c. The width of the confidence interval decreases as the alpha risk decreases (= as the probability increases). | ||

4. Which of the following statements are true? | ||

a. The Pareto chart is used to display categorical variables in order of importance. | ||

b. The histogram is the most suitable plot to visualize the sample distribution. | ||

c. The scatterplot shows a potential correlation between 2 series of data | ||

d. The boxplot allows comparison of both the dispersions and the averages of several data sets. | ||

5. 5. For Gaussian data (normal distribution), what is the theoretical percentage of the population in the range: mean ± 1.96* standard deviation | ||

a. 95 % | ||

b. 95,45 % | ||

c. 99 % | ||

d. 99,73 % | ||

6. 4 dice are rolled simultaneously. The outcome is the sum of these dice and the experiment is repeated many times. What is the distribution associated to the sum? | ||

a. Binomial distribution | ||

b. Normal distribution | ||

c. Student’s distribution | ||

d. Fisher’s distribution |

Your result 0/18

Congratulations, your level in basic statistics is sufficient to undertake more advanced training. Please complete this short questionnaire for some more advanced analytical methods.

Fill out the MSG2 MCQ to complete your assessment:

1. We wish to compare the means of 2 samples, with a risk of 5%. The calculated p-value is 0.231 (23.1%). In this case: | ||

a. We do not reject the null hypothesis, which is H0: m1 = m2 | ||

b. We do not reject the null hypothesis, which is H0: m1 ≠ m2 | ||

c. We reject the null hypothesis, and we retain the alternative hypothesis, which is H1: m1 = m2 | ||

d. We reject the null hypothesis, and we retain the alternative hypothesis which is H1: m1 ≠ m2 | ||

2. We wish to compare the means of 2 samples, with a risk of 5%. The calculated p-value is 0.231 (23.1%). How to formulate the conclusion? | ||

a. The statistical test shows equality between the means, with a risk of error lower than 5%. | ||

b. The statistical test does not reveal any differences between the means at the 5% level | ||

c. The statistical test shows a difference between the means, with a risk of error lower than 5%. | ||

d. The statistical test does not show equality between the means at the 5% threshold. | ||

3. Biological measurements are made on the same patient before and after the application of a treatment. In statistics, the measurements are called: | ||

a. Paired | ||

b. Independent | ||

c. Jointed | ||

4. . What is the name of the test in which H0: m1 < m2 versus H1: m1 > m2: | ||

a. The equivalence test for inferiority | ||

b. The one-tailed comparison test | ||

c. The signs test | ||

5. We wish to compare the average marks obtained during an exam by students from 2 different schools, which statistical test should be applied? | ||

a. Fisher’s test | ||

b. Bartlett’s test | ||

c. The T-test, paired Student’s t test | ||

d. The T-test, independent Student’s t test | ||

e. The Chi-2 test | ||

f. Shapiro-Wilk’s test | ||

g. An ANOVA | ||

h. A Regression | ||

6. We wish to compare the average marks obtained during an exam by students from 5 different schools, which statistical test should be applied? | ||

a. Fisher’s test | ||

b. Bartlett’s test | ||

c. The T-test, paired Student’s t test | ||

d. The T-test, independent Student’s t test | ||

e. The Chi-2 test | ||

f. Shapiro-Wilk’s test | ||

g. an ANOVA | ||

h. a Regression |

Your result 0/6

Congratulations, your level in statistical tests is sufficient to undertake all of our statistical training programs.

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