8.Sarah y yo ___________las mismas clases este semestre en MSSU.

2159.jpg

If a t-test was used to analyze the data, what would be the t-statistic value? 

Problem 3. A tech startup tests 4 keyboard layouts (A, B, C, D) to see which yields faster typing speed (words per minute) for novice users. Thirty‑two (32) volunteers are randomly assigned in a completely randomized design with 8 users per layout, and each user completes one timed trial. The company analyzes the between‑layout variation with a one‑way ANOVA. The total sum of squares and treatment (factor) sum of squares are calculated as follows:  SSTotal = 1040 SSTreatment = 480  

There are true replicates in this experiment. 

If we performed the appropriate t-test to analyze the data, the standard error (SE) used in that test and the Mean Square Error (MSE) from the RCBD ANOVA would be related in which of the following ways?  Hint: You can figure out the relationship by first calculating the standard error from the t-test and the MSE from ANOVA separately, and then comparing them.

The appropriate randomization scheme in this experiment is similar to that of a randomized complete block design.

A significance level of

If the total degrees of freedom in the ANOVA is 23, how many levels does the factor of interest have?  

If a t-test was used to analyze the data, what would be the total number of degrees of freedom for the test?