Data from a sample of high school students was collected on different approaches to teaching.For a science class the students were placed in either the lecture only, lecture-lab, or all-lab approach.Students were randomly assigned to each of the three section and at the end of the term they were to rate the effectiveness of each type of course.Given the data below calculate the F-ratio.Include the null and alternative hypothesis, the SSWG, SSBG, the SST, degrees of freedom within, degrees of freedom between, MSWG, and the MSBG.
H0:?lecture =?lab/lecture = µlabonly
H1:?lecture??lab/lecture??labonly
SSWG = 42.00
SSBG =22.52
SST = 643.52
Degrees of freedom within =24
Degrees of freedom between =2
MSWG = 1.75
MSBG = 11.26
F-ratio= 4.62
H0:?lecture =?lab/lecture = µlabonly
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