Descriptive and Inferential Statistics Answers

Which of the following statements about a normal distribution is not true?A.A normal distribution is represented by a bell-shaped curve.B.A normal distribution has the same value for the mean, median, and mode.C.A normal distribution displays the highest data scores in the middle of the distribution.D.A normal distribution demonstrates how data scores rise and fall within a sample.

Compare and contrast measures of central tendency and measures of variability.

Analyze the graph below and answer the question that follows. Based on the location of the observed test value, what would a psychologist conclude about the research results? A. The psychologist would claim that the research results were significant. B. The psychologist would claim that the research results were nonsignificant. C. The psychologist would claim that there is insufficient data in the research. D. The psychologist would claim that the critical values are inaccurate. Please select the best answer from the choices provided

Compare and contrast correlation and regression.

Define statistics and give an example of three types of variables that researchers study using statistics.

__________ correlation between two variables means that as scores on one variable increase, then scores on another variable also increase.

The mean, median, and mode of a distribution are __________.A. measures of central tendencyB. measures of variabilityC. types of transformed scoresD. types of deviations

A negative correlation between two variables indicates that one variable score increases as another variable score decreases.

Explain why researchers cannot claim causation when examining the relationship between variables.

A researcher claiming that females were more empathetic than males would test that hypothesis by using __________ statistics. A.inferential B.exploratoryC.descriptiveD.correlational