Statistics

Which is the best answer for what do the mean results in this study suggest?

• Type of film impacts on nightmares as people who watch horror films are 7 times more likely to have nightmares than those who watch romantic comedies

• People who watch horror had on average 2.18 nightmares in comparison to those who watched romantic comedies who had 0.30 nightmares

• Types of films impact on number of nightmares people have

Which is the best answer for what do the standard deviation results suggest in this study?

• The standard deviation scores are similar for those watching horror films and those watching romantic comedies showing consistency

• The standard deviation scores are higher in the group who watched horror films in comparison to those who watched romantic comedies showing an inconsistency between the 2 groups

• The standard deviation scores show inconsistency

• The standard deviation scores show consistency

Which 2 measures of central tendency should NOT be used on this data?

• Mean

• Mode

• Median

Which type of data analysis should be used to find out how consistent a set of results are?

• Measure of central tendency

• Measure of dispersion

• Inferential statistical test

• Percentages

What type of statistics give a numerical value to illustrate certain characteristics about the data?

• descriptive

• inferential

Which statistical measure is used to determine the average value in a data set?

• Mean

• Median

• Mode

• Range

What is the primary purpose of inferential statistics?

• To summarize data

• To make predictions about a population

• To organize data

• To calculate averages

Which of the following is a measure of central tendency?

• Variance

• Standard deviation

• Mean

• Correlation

What does a p-value in statistics indicate?

• The probability of observing the data given that the null hypothesis is true

• The average of the data set

• The range of the data

• The correlation between variables

Which statistical test is used to compare the means of two independent groups?

• Chi-square test

• T-test

• ANOVA

• Regression analysis