Why can the standard error of the average difference be a different number depending on which samples you are comparing?
Answer to relevant Questionsa. What kind of data set should be analyzed using the one-way analysis of variance? b. Why shouldn’t you use the unpaired t test instead of the one-way analysis of variance? Three advertisements have been tested, each one using a different random sample of consumers from the same city. Scores indicating the effectiveness of the advertisement were analyzed; the results are shown in Table ...Table 15.5.4 shows the average quality scores for production, averaged according to which supplier (A, B, or C) provided the materials and which shift (day, night, or swing) was active at the time the part was produced; this ...Refer to the data for problem 1. a. Find the average difference between the effectiveness of ad 1 and that of ad 2 (computed as ad 2 minus ad 1). b.* Find the standard error for this average difference. c. How many degrees ...a. What is a nonparametric statistical method? b. For the nonparametric approach based on counts, what is being counted? What probability distribution is used to make the decision? c. For the nonparametric approach based on ...
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