Hypothesis Testing in Quantitative Research Methods MSOP1016

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What is the best statistic to represent how closely packed around the mean the values are?

Mean

Confidence interval

Median

Standard deviation (correct)

Which statistic represents the most frequently occurring value?

Mean

Mode (correct)

Median

Range

What measures the difference between the maximum and minimum values in a dataset?

Mode

Mean

Range (correct)

Median

In hypothesis testing, what does a P-value indicate?

Probability of an event occurring by chance Signup and view all the answers

Which type of diet was tested in the example where a researcher compared the efficacy of 4 types of commercial weight-loss diets?

Weight watchers® Signup and view all the answers

What is the null hypothesis in the weight loss diet comparison study?

There is no significant difference in weight loss between the diets. Signup and view all the answers

What is the main focus of inferential statistics in hypothesis testing?

Making inferences about a population based on sample data Signup and view all the answers

What is the significance of a 5% level of significance in statistical research?

It signifies that there is a 95% probability that an outcome is not due to chance. Signup and view all the answers

Which type of statistics is used to analyze quantitative data by providing the 'typical' value in the dataset?

Measures of central tendency Signup and view all the answers

Which type of relationship does hypothesis testing aim to determine?

'Cause-effect', 'non-causal associations', and 'other explanations' Signup and view all the answers

What do measures of spread, such as standard deviation and interquartile range, tell us about the data?

How close data points are from one another Signup and view all the answers

'Null Hypothesis' indicates there is what kind of relationship between variables or phenomena?

'Null relationship' Signup and view all the answers

Which statistical category focuses on presenting data using tables, charts, and frequencies?

Descriptive statistics Signup and view all the answers

'Standard deviation' is used to represent which aspect of a dataset's distribution?

Closeness of values to the mean Signup and view all the answers

What does the difference between the maximum and minimum value in a dataset represent?

A measure of spread Signup and view all the answers

In quantitative research, what is the purpose of identifying appropriate methods and conducting the research?

To address the research question or hypothesis Signup and view all the answers

For a dataset with a sample size of 45, which test is recommended to check for normal distribution?

Shapiro-Wilk test Signup and view all the answers

Which statistical test should be used to examine the strength and direction of a relationship between two continuous variables?

Pearson's correlation coefficient Signup and view all the answers

In interpreting correlation values, what range would be considered indicative of a moderate relationship between variables?

$0.4 < r < 0.7$ Signup and view all the answers

What does a negative Pearson's correlation coefficient value signify?

Perfect negative correlation Signup and view all the answers

In a study with N = 100 participants, which test would be suitable for comparing more than two groups to establish variations in scores or measurements?

ANOVA Signup and view all the answers

When should Spearman's rho be used instead of Pearson's r for assessing the relationship between variables?

For normally distributed data Signup and view all the answers

What do P-values provide guidance on in hypothesis testing?

Whether the null hypothesis is likely to be true or false Signup and view all the answers

Which error occurs when the null hypothesis is true but inaccurately rejected?

Type 1 error Signup and view all the answers

What type of data variable is ethnicity classified as?

Categorical Signup and view all the answers

In which type of distribution is the mean value larger than the median?

Positively skewed distribution Signup and view all the answers

What type of data allow fractions and decimals?

Interval data Signup and view all the answers

Which assumption must be met to use parametric statistical tests?

Normal distribution of data Signup and view all the answers

'H0' refers to which concept in hypothesis testing?

'Null' hypothesis Signup and view all the answers

'Beta (β)' is associated with which type of statistical error?

'Type 2' error Signup and view all the answers

'Types of statistical tests used for normally distributed data are called ______.'

'Parametric tests' Signup and view all the answers

'Median' is especially useful for representing data that is ______.'

'Skewed' Signup and view all the answers

Hypothesis Testing in Quantitative Research Methods MSOP1016

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Questions and Answers

What is the best statistic to represent how closely packed around the mean the values are?

Which statistic represents the most frequently occurring value?

What measures the difference between the maximum and minimum values in a dataset?

In hypothesis testing, what does a P-value indicate?

Which type of diet was tested in the example where a researcher compared the efficacy of 4 types of commercial weight-loss diets?

What is the null hypothesis in the weight loss diet comparison study?

What is the main focus of inferential statistics in hypothesis testing?

What is the significance of a 5% level of significance in statistical research?

Which type of statistics is used to analyze quantitative data by providing the 'typical' value in the dataset?

Which type of relationship does hypothesis testing aim to determine?

What do measures of spread, such as standard deviation and interquartile range, tell us about the data?

'Null Hypothesis' indicates there is what kind of relationship between variables or phenomena?

Which statistical category focuses on presenting data using tables, charts, and frequencies?

'Standard deviation' is used to represent which aspect of a dataset's distribution?

What does the difference between the maximum and minimum value in a dataset represent?

In quantitative research, what is the purpose of identifying appropriate methods and conducting the research?

For a dataset with a sample size of 45, which test is recommended to check for normal distribution?

Which statistical test should be used to examine the strength and direction of a relationship between two continuous variables?

In interpreting correlation values, what range would be considered indicative of a moderate relationship between variables?

What does a negative Pearson's correlation coefficient value signify?

In a study with N = 100 participants, which test would be suitable for comparing more than two groups to establish variations in scores or measurements?

When should Spearman's rho be used instead of Pearson's r for assessing the relationship between variables?

What do P-values provide guidance on in hypothesis testing?

Which error occurs when the null hypothesis is true but inaccurately rejected?

What type of data variable is ethnicity classified as?

In which type of distribution is the mean value larger than the median?

What type of data allow fractions and decimals?

Which assumption must be met to use parametric statistical tests?

'H0' refers to which concept in hypothesis testing?

'Beta (β)' is associated with which type of statistical error?

'Types of statistical tests used for normally distributed data are called ______.'

'Median' is especially useful for representing data that is ______.'

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