Two separate samples, each with n= 12 individuals, receives two different treatments. After treatment, the first sample has SS= 1740 and the second SS= 1560.
a) find the pooled variance for the two samples.
b) Compute the estimated standard error for the sample mean difference
c) If the sample mean difference is 8 points, is this enough to reject the null hypothesis and conclude that there is significant difference for a two tailed test at the .05 level?
d) If the sample mean difference is 12 points, is this enough to indicate a significant difference for a two tailed test at the .05 level?
e)Calculate the percentage of variance accounted for (r^2) to measure the effect size for an 8-point mean difference and for a 12-point mean difference
WRITE THIS ESSAY FOR ME
Tell us about your assignment and we will find the best writer for your paper.
Get Help Now!2. Movie goers total sample is 458.
148 x go to the day time viewing, 310 go to night time viewing.
calculate the 95% confidence interval for the proportion of movie goers who prefer the night time viewing – been going round and round in circles with this one
Introducing our Online Essay Writing Services Agency, where you can confidently place orders for a wide range of academic assignments. Our reputable homework writing company specializes in crafting essays, term papers, research papers, capstone projects, movie reviews, presentations, annotated bibliographies, reaction papers, research proposals, discussions, and various other assignments. Rest assured, our content is guaranteed to be 100% original, as every piece is meticulously written from scratch. Say goodbye to concerns about plagiarism and trust us to deliver authentic and high-quality work.
WRITE MY ESSAY NOW
