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You gave a test to 300 students and the mean score was a 60 Each SD was 10 pts How many students will score greater than a 70 80 60 What if you had 400 students?
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∙ 15y ago
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What is the z score of 6.56 and how do you find it?
There is insufficient information in the question to answer it. To determine Z-Score, you need raw score, which you gave, but you also need mean and standard deviation, which you did not give. Please restate the question.
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When Mrs Myles gave a test the scores were normally distributed with a mean of 72 and a standard deviation of 8 About 68 percent of her students scored between which two scores?
68 % is about one standard deviation - so there score would be between 64 and 80 (72 +/- 8)
