BST 322 (BST 322)

National University

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Examen

BST 322 Final Exam Graded A
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5

mayo 2025

2024/2025

A+
1. When calculating a Pearson's correlation coefficient, it is necessary that both variables have approximately normal distributions. - True 2. The variable "Group assignment" is an example of what level of measurement? - Nominal 3. Statistics that allow for inferences to be made about a population from the study of a sample are known as: - Inferential 4. Which measure of variability is used most often in conjunction with the mean? - Standard deviation 5. Data that are categor...
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Examen

BST 322 Final Exam Graded A
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5

mayo 2025

2024/2025

A+
1. When calculating a Pearson's correlation coefficient, it is necessary that both variables have approximately normal distributions. - True 2. The variable "Group assignment" is an example of what level of measurement? - Nominal 3. Statistics that allow for inferences to be made about a population from the study of a sample are known as: - Inferential 4. Which measure of variability is used most often in conjunction with the mean? - Standard deviation 5. Data that are categor...
shadow251
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Examen

BST 322 Final Questions Wk 4
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7

agosto 2023

2023/2024

A
Critical care nurses wanted to evaluate the effect of heparin vs saline IV flush solution on IV patency (patent vs not patent). Which test is most appropriate? • Question 2 An entire set of individuals or objects having some common characteristics is: • Question 3 1 out of 1 points 1 out of 1 points Positive relationships between two variables indicate that, as the score of one increases, the score of the other increases. • Question 4 Parametric te...
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Examen

BST322 Intro to Biomedical Statistics
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12

agosto 2023

2023/2024

A
• Question 1 1 out of 1 points The assumptions for ANCOVA differ substantially from those for ANOVA. Selected Answer: Correct Answer: Fals e Fals e • Question 2 A nurse researcher wanted to evaluate blood pressure in a set of 1 out of 1 points patients/research subjects at 1, 3, and 6 months. What test would be most appropriate? Selected Answer: RM-ANOVA Correct Answer: RM-ANOVA • Question 3 1 out of 1 points A variable with equal dis...
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Examen

BST 322 Final Exam
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6

agosto 2023

2023/2024

A
Question 1 1 out of 1 points Parametric tests can be used with any type of data. Correct Answer: False Question 2 1 out of 1 points Bivariate statistics refers to the statistical analysis of the relationship between two variables. Correct Answer: True Question 3 1 out of 1 points Correlation coefficients, r, range from -1.00 to +1.00. Correct Answer: True Question 4 1 out of 1 points Data which uses number values, has an equal distance between values, and has a possible absolute...
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Examen

BST 322 final exam
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16

mayo 2023

2022/2023

A
Question 1 1 out of 1 points This is used when a conservative approach is desired and an expected cell frequency is less than 5 in a 2X2 table. Selected Answer: Fisher's exact test Answers: Fisher's exact test Cramer's V Yates' correction Regression  Question 2 1 out of 1 points When examining the relationship between a nominal variable and an interval or ratio variable, you would create a table using the nominal variables, calculate the mode and median of the interval o...
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Examen

BST 322 final exam
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16

mayo 2023

2022/2023

A
Question 1 1 out of 1 points This is used when a conservative approach is desired and an expected cell frequency is less than 5 in a 2X2 table. Selected Answer: Fisher's exact test Answers: Fisher's exact test Cramer's V Yates' correction Regression  Question 2 1 out of 1 points When examining the relationship between a nominal variable and an interval or ratio variable, you would create a table using the nominal variables, calculate the mode and median of the interval o...
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Examen

BST 322 Week 3 Assignment
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3

agosto 2021

2021/2022

A+
9. Write a paragraph summarizing the results of the analysis in Exercise 8. What can you conclude about smoking and depression (“Feeling Down”) in this sample? The Chi-square value of 6.31 is statistically significant because it is greater than its critical value of 5.99. In addition, the p-value is less than 0.05, therefore we can reject the null hypothesis that smokers/non-smokers are independent of the depression frequency. It appears that smoking affects depression frequency. 10. Be...
Kingamor
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Lote

BST 322 Exams Study Guide
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1

5

agosto 2021
BST 322 Week 2 Assignment BST 322 Week3Assignment BST 322 Independent Project BST 322 BST Quiz 2 BST 322 BST Final Exam
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Examen

BST 322 Week 2 Assignment
Disponible en un paquete

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9

agosto 2021

2020/2021

A+
Disponible en un paquete
5. (1 pt) Write a few sentences that could be used to report the results obtained for the t-test in Exercise 4. We are unable to reject the null hypothesis (H0: μ = 45) because the p-value 0.1371 is greater than .05 makes it non-significant. The tabled value 2.12 for a two-tailed test is greater than the t-statistic 1.565. This means we cannot accept the alternative hypothesis that the drug alters heart rate. (HA : μ ≠ 45) 6. (2 pts) A study by the Fellows Research Group evaluated the ...
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Examen

BST 322 Week3Assignment
Disponible en un paquete

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11

agosto 2021

2020/2021

A+
Disponible en un paquete
7. (1 pt) Using the information provided, indicate which statistical test you think should be used for each of the following situations (a-d): y. a. Independent variable: normal birth weight vs. low birth weight infants; dependent variable: breathing rate (in breaths per minute). 2-T-Test b. Independent variable: time of measurement of same patient (before, and after surgery); dependent variable: heart rate. One sample T-test c. Independent variable: time of measurement (before, during, a...
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