Compute the degrees of freedom associated with test

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After receiving some complaints from the readers, a university newspaper decides to redesign its front page. Two new formats, B and C, were developed and tested against the current format, A. A total of 75 students were randomly selected and 25 students were randomly assigned to each of three format conditions. The students were asked to evaluate the effectiveness of the format using an 11 point scale where 1 = poor and 11 = excellent.

•Formulate the null hypothesis

•Analyze which statistical test you should use.

•Calculate the degrees of freedom associated with the test statistic

Reference no: EM1368889


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