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Study Resources (Statistics)

For the following hypothesis tests, you will need to first recognize whether you are performing a z-test or a t-test. Then state your hypotheses, calculate the test value, identify the critical value (if doing traditional method) or p-value (if using p-value method), make your decision about the null hypothesis, and.
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For the following experiment, identify how control, randomization, and replication were used. A commercial food lab compared recipes for chocolate chip cookies. They baked cookies with different kinds of chips (milk chocolate, dark chocolate, andsemi-sweet). All other ingredients and amounts were the same. Ten trained tasters rated.
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For the following arguments, (a) provide the argument in propositional form. Be sure to indicate which letters represent which propositions. (b) Provide a truth table for the argument; (c) State whether the argument is valid or invalid. For the following arguments, (a) provide the argument in propositional.
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For the following claim, find the null and alternative hypothesis, test statistic, critic value, and draw a conclusion. Assume that a simple random sample has been selected from a normally distributed population. Answer parts Claim: The mean IQ score of statistics professors is greater than 121. Sample data: n =.
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For randomly selected adults, IQ scores are normally distributed with a standard deviation of 15. At a 10% significance level, does the data provide sufficient evidence to claim that the standard deviation of college students IQ scores are less than 15. The scores of 14 randomly selected college students were.
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For the following drug screening table: Pre Employment Drug Screening Results Result If a subject is randomly selected find the probability that The subject had positive test result OR a negative test result. The subject had positive test result OR uses drugs. The subject had positive test result OR does.
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8.a A person is considered hypertensive if their diastolic blood pressure is elevated above 90 mmHg. A random sample of 30 hypertensive patients is selected and their baseline (elevated) blood pressure is recorded. Then each patient is given an experimental drug for a week and their blood pressure measured again.
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