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What is the likelihood that a sample

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1. What is the likelihood that a sample of 50 people had an average IQ score of at least 110? What is the likelihood that a sample of 25 people had an average IQ score of 110 or higher?

2. A sample of 25 students is selected from a population with a µ = 35. The students participated in an awareness program and they were tested for an increase in knowledge after the program. The mean increased to 40, with a SD = 10. Is the outcome statistically significant?

Reference no: EM131870174

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