Ch 7 Review

An outlier is a data value that is greater than the UOB or less than the LOB

• True

• False

To estimate the p-value from a dotplot, divide the total number of dots into the number of dots that are equal to or more extreme than the test statistic

 

• True

• False

A simulation is a controllable event that has the same probability of success as an athlete’s or team’s presumed ABILITY, and that can be repeated many times 

• True

• False

In a boxplot, the median can be outside the box if the distribution is skewed

 

• True

• False

In a numerical distribution, about 75% of the data values are greater than or equal to the value of the 1^st quartile

 

• True

• False

A Type I error occurs when the null hypothesis is rejected but it turns out to be true

• True

• False

In an experiment, control means not letting any of the subjects know what treatment they are trying

 

• True

• False

since the standard deviation is a measure of consistency, a higher standard deviation indicates more consistency than a lower standard deviation

• True

• False

paired data can only result from an experiment, never from an observational study

• True

• False

For hypothesis test testing two standard deviations of two contexts,

how is the test statistic calculated?

• add the 2 SD and divide by 2

• add the 2 SD and divide by one less than the number of data values

• square each SD, add and take the square root of the sum

• subtract context 2 SD from context 1 SD