EMATH STATISTICS REVIEW QUIZ Qtr3

It refers to distortion or asymmetry in a symmetrical bell curve, or normal distribution, in a set of data.

• Hypothesis

• Kurtosis

• Skewness

• Symmetry

This kind of distribution means the mean and median are greater than the mode. It is also known as the right-skewed distribution.

• Symmetric

• Negatively Skewed

• Positively Skewed

• Highly Skewed

A way to describe the shape of a data display that indicates most of the data is on one side of the display.

• Skewed

• Symmetric

• Unimodal

• Uniform

If the null hypothesis is false then which of the following is accepted?

• Alternative Hypothesis

• Null Hypothesis

• Negative Hypothesis

• Positive Hypothesis

Which of the following is a statistical treatment under non-parametric test?

• Multiple Regression

• Pearson r

• t-test

• Spearman rho

This category of kurtosis' coefficient is typically found to be more than 3.

• Antikurtic

• Mesokurtic

• Leptokurtic

• Platykurtic

For a skewed distribution mean = 100, median = 98.5 and standard deviation = 9. Find the skewness of the distribution.

• -1.50

• -0.50

• 0.50

• 1.50

It is a test where the population parameter from which the population is drawn is left unconstrained.

• Hypothesis Testing

• Parametric Test

• Non-Parametric Test

• Test-Statistics

Which of the following is a nature of the data for t-test?

• There can be only one variable of interest

• Numerical Variable

• Normal Distribution

• All of the above

Which of the following statements most accurately describes the purpose of hypothesis testing?

• Test how far the mean of a sample is from zero

• Determine whether a statistical result is significant

• Choose appropriate significance level value

• Derive the standard error of the data