Scores on an iq test
Suppose scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a person who takes the test will score between 90 and 110?
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If a decision model has one variable with a certain/deterministic input value and another variable with a random/probabilistic input, then the outcome of this model which is based on both variables will be probabilistic.
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Find the P-value obtained when testing the claim that p = 0.75 when given sample data resulting in a test statistic of z = 1.20.
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