Conduct a one-sample t-test for a dataset where ! = 14.1, X = 13.7, sx = 0.8, n = 20.
What are the groups for this one-sample t-test?
What is the null hypothesis for this one-sample t-test?
What is the value of "?
Should the researcher conduct a one- or a two-tailed test?
What is the alternative hypothesis?
What is the value for degrees of freedom?
What is the t-observed value?
What is(are) the t-critical value(s)?
In view of the critical and observed values, should the researcher reject or retain the null
hypothesis?
What is the p-value for this example?
What is the Cohen’s d value for this example?
If the " value were dropped to .01, would the researcher reject or retain the null hypothesis?
Calculate a 68% CI around the sample mean.
Calculate a 90% CI around the sample mean.
Calculate a 98% CI around the sample mean.