A teacher gives a reading skills test to a third-grade class of n = 25 at the beginning of the school year. To evaluate
Posted: Sun Jul 10, 2022 10:41 am
A teacher gives a reading skills test to a third-grade class ofn = 25 at the beginning of the school year. To evaluate the changesthat occur during the year, students are tested again at the end ofthe year. Their test scores showed an average improvement of MD =12.7 points with s2 = 100.
What is the estimated standard error?
Using a two-tailed hypothesis with a .05 alpha, what is thecritical value?
What is the value of the t-statistic?
You should reject the null hypothesis?
Calculate cohen's d?
What is the estimated standard error?
Using a two-tailed hypothesis with a .05 alpha, what is thecritical value?
What is the value of the t-statistic?
You should reject the null hypothesis?
Calculate cohen's d?