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BESC 3010 Final Exam Questions and Answers | Latest Update | 2024/2025 | 100% Pass
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BESC 3010 Final Exam Questions and Answers | Latest Update | 2024/2025 | 100% Pass Which of the following represents a Type I error? A) Failing to reject a true null hypothesis B) Rejecting a false null hypothesis C) Rejecting a true null hypothesis D) Failing to reject a false null hypo...

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  • November 4, 2024
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  • 2024/2025
  • Exam (elaborations)
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BESC 3010 Final Exam Questions and
Answers | Latest Update | 2024/2025 |
100% Pass
Which of the following represents a Type I error?

A) Failing to reject a true null hypothesis

B) Rejecting a false null hypothesis

C) Rejecting a true null hypothesis

D) Failing to reject a false null hypothesis


✔✔C) Rejecting a true null hypothesis




What does a 95% confidence interval indicate?

A) There is a 95% chance the population parameter lies within the interval

B) The sample means will fall within the interval 95% of the time

C) The interval will contain the sample mean 95% of the time

D) We can be 95% confident that the interval contains the population parameter


✔✔D) We can be 95% confident that the interval contains the population parameter




In a normal distribution, what percentage of data falls within one standard deviation of the mean?


1

,A) 50%

B) 68%

C) 75%

D) 95%


✔✔B) 68%




What does it mean if a data set is positively skewed?

A) The mean is less than the median

B) The median is greater than the mode

C) The majority of the data points are concentrated on the left

D) The majority of the data points are concentrated on the right


✔✔D) The majority of the data points are concentrated on the right




Which statistical test would you use to compare the means of two independent groups?

A) Paired t-test

B) ANOVA

C) Independent t-test

D) Chi-square test


2

,✔✔C) Independent t-test




What is the primary assumption of ANOVA?

A) Data must be normally distributed

B) Groups must have equal variances

C) Data must be interval or ratio scale

D) All of the above


✔✔D) All of the above




What does a chi-square test assess?

A) The relationship between two continuous variables

B) The difference between two means

C) The association between categorical variables

D) The variance within a single group


✔✔C) The association between categorical variables




What is the significance level (alpha) typically set at in social science research?

A) 0.01


3

, B) 0.05

C) 0.10

D) 0.15


✔✔B) 0.05




In regression analysis, what does a coefficient represent?

A) The average of the dependent variable

B) The total number of observations

C) The amount by which the dependent variable changes for a one-unit change in the

independent variable

D) The standard deviation of the residuals


✔✔C) The amount by which the dependent variable changes for a one-unit change in the

independent variable




What is the purpose of conducting a power analysis?

A) To determine the p-value of a test

B) To assess the strength of the correlation between two variables

C) To estimate the sample size needed to detect an effect

D) To calculate the mean of a data set
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