Question
1. There is a test. It's mean is 300 with a standard deviation of 50. What is the range of the mid 60% of the
1. There is a test. It's mean is 300 with a standard deviation of 50. What is the range of the mid 60% of the distribution? Explain the steps for the answer.
2. It is given that the mean SAT score is 500 with a standard deviation of 100. Ben scored a 415 on the SAT. What percentile rank is he in? Explain the steps please.
3. It is given that the mean SAT score is 500 with a standard deviation of 100. Amy scored in the 90th percentile rank. What is her score? Explain the steps please.
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Fundamentals of quality control and improvement
Authors: amitava mitra
3rd edition
470226536, 978-1-11849164, 978-0470226537
