Below is the data the DJ collected: ID Vibe Rating for Vinyl (Raw) Vibe Rating for Vinyl (Squared) ID Vibe Rating for Digital (Raw) Vibe Rating for Digital (Squared) 1 8 64 16 5 25 2 8 64 17 10 100 3 10 100 18 7 49 4 10 100 19 5 25 5 7 49 20 10 100 6 9 81 21 5 25 7 10 100 22 4 16 8 7 49 23 6 36 9 9 81 24 6 36 10 7 49 25 7 49 11 10 100 26 9 81 12 7 49 27 10 100 13 9 81 28 7 49 14 10 100 29 4 16 15 6 36 30 7 49 Sums 127.00 1103.00 Sums 102.00 756.00 Means 8.47 73.53 Means 6.80 50.40 1. What is the standard error (the final denominator value of the obtained test statistic)? Note. Only two decimal precision is needed. 2. What is the obtained value of the test statistic (z-obtained or t-obtained)? Note. Only two decimal precision is needed. 3. What is the value of Cohen's d? Note. Only two decimal precision is needed. 4. Which of the following describes the magnitude of the effect size in this test? - There is no effect size for this test. - Medium - Large - Small
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To calculate the standard error, we need to know the sample size and the variance of the population. As we don't have information about the population, we will use the sample variance as an estimate. The formula for the standard error is: SE = sqrt[(s1^2/n1) + Show more…
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