Stat and Prob - 4th Quarter - First Summative Test

What type of error is occurred in decision making when the true hypothesis is rejected?

• Type I error

• Type IV error

• Type II error

• Type III error

Which of the following refers to a statistical method that is used in making statistical decisions using experimental data?

• Research

• Hypothesis testing

• Analytical theory

• Statistical analysis

What type of error is occurred in decision making when the false hypothesis is accepted?

• Type I error

• Type IV error

• Type II error

• Type III error

Which of the following refers to the numbers that summarizes data from a sample?

• Parameter

• Population

• Statistics

• Quantity

What do you call a claim(assumption) about one or more population parameter?

• Hypothesis

• Illusion

• Theoretical

• Visionary

Which term refers to the measure of a characteristics of an entire population?

• Parameter

• Population

• Statistics

• Quantity

Which of the following refers to the unbiased estimate of the population mean?

• Population mean

• Sample mean

• Population variance

• Standard deviation

Which term describes the average of a group characteristics (group could be a person, item or thing)?

• Population mean

• Sample mean

• Population variance

• Standard deviation

A researcher has exam result for students who took a training course for a national exam. The researcher wants to know if trained students score above the national average of 850. Which of following is the parameter of interest?

• The researcher

• The national exam

• The training course

• The average score of 850

What is the decision-making process for evaluating claims about a population based on the characteristics of a sample purportedly coming from the population?

• Decision Testing

• Null Testing

• Alternative Testing

• Hypothesis Testing