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A set of n = 16 difference scores has a mean of MD = 4 and a variance of s2 = 36. Cohen's d for this sample is d = 4/6.
A set of"-16 dinerence scores has a m of MD-4 and a variance of v2-36 Cohen's...
14. A set of 100 scores has a variance of o2 = 40 when treated as a population. If you treat it as a sample instead, what is the variance (s)? 15. Curious how far housecats can jump, you collect 12 of them and measure a distance for each one. Your sample mean is M = 8 ft. What is your best guess for u, the population mean for all cats? 16. The variance of your sample from the previous...
7. Effect size - Cohen's d and r squared Aa Aa E An industrial/organizational psychologist has been consulting with a company that runs weekend job-seeking workshops for the unemployed. She collected data on several issues related to these workshops and, after conducting statistical tests, obtained statistically significant findings. She needs to find a way to evaluate effect size so that she can make recommendations to the company. One of the psychologist's findings is that 1 year after the workshop, a...
22. One sample has M 18 and a second sample has M 14. If the pooled variance for the two samples is 16, then what is the value of Cohen's d? a. 0.25 b. 0.50 1.00 d. this cannot be determined with the info Given
What are the sample variance and sample standard deviation of the following data set: 4, 7, 9, 10, 16? Sample standard deviation=4.4 Variance=19.7 Sample standard deviation=6 Variance= 36 Sample standard deviation=7 Variance= 49 Sample standard deviation=3 Variance= 9
1. If a set of 9 numbers has standard deviation 7, then it's variance is: a. 49.00 b. 2.33 c. 16.33 d. 21.00 2. Christine is currently taking college astronomy. On the past seven quizzes, Christine got the following scores: 46 20 33 21 14 48 55 Find the standard deviation of the quiz scores. a. 16.1 b. 33 c.8024.1 d. 9571
A sample with variance s2 = 100, has M = 65 and has an estimated standard error sM = 2 points. How many scores are in the sample? Group of answer choices 9 10 25 36
Calculate the variance and standard deviation for the following sample of scores: 7, 2, 4, 6, 4, 7, 3, 7 2 Enter an exact number. Need Help Read It Viewing Saved Work Revert to Last Response Submit Answer Save Progress << View Previous Question Question 15 of 22 Home My Assignments Extension P 其i 0 Type here to search F3 F1 F2 0 0 C@
Question 36 (1 point) 36. A researcher would like to determine whether an over-the-counter cold medication has an effect on mental alertness. A sample of n = 16 participants was obtained, test scores in a driving simulation task were obtained before and after each person was given a standard dose of the medication. The summary data are as follows: MD = 5, SD = 8 Which of the following is the correct t value? O a. 3.0 Ob.2.5 c. 3.5...
Question 6 5 pts A sample of n = 4 scores with SS = 48 has a variance of s = 16 and an estimated standard error of 2. True O False
9. What is the mean of the data set {0, 2, 4, 8, 16, 36} ? A 8.0 C 11.0 B 12.0 D 13.2