A set of n = 40 pairs of scores (X and Yvalues) produces a regression equation of Ŷ = 13X + 15. Find the predicted Y value for an X score of 3.

The results of an one sample t-test are reported as follows: t(15) = 2.70, p < .05.  Based on this report, how many individuals were in the sample?

Which set of characteristics will produce the smallest value for the estimated standard error?

What is the critical value for a correlation with n=22, two-tailed, and an alpha level of 0.10?

A population of scores has µ = 44.  In this population, a score of X = 40 corresponds to z = –0.50.  What is the population standard deviation?

What is the first step to be performed in the following mathematical expression:  (SX)2 ?

An independent-measures research study uses two samples, each with n = 12 participants.  If the data produce a t statistic of t = 2.08, then which of the following is the correct decision for a two-tailed hypothesis test?

A sample of 30 people is selected from a population with an unknown mean. The one-sample t estimation equation is used to compute the 99% confidence interval around µ. Which of the values below should be used for t in this equation?  µ = 40 ± ( t )( 4 )

A set of n = 10 pairs of scores has ΣX = 20, ΣY = 30, and ΣXY = 74.  What is the value of SP for these data?

For a sample with M = 80, a score of X = 88 corresponds to z = 2.00.  What is the sample standard deviation?