Exam 7: Probability and Hypothesis Testing

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Given that on one section of the SAT the mean is 500 and the standard deviation is 100,what is the approximate probability of a student scoring 300 or lower or 700 or higher on the test?

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Imagine that I have a jar that contains20 black poker chips and 40 red poker chips.What is the probability of selecting a red poker chip?

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What is the probability of drawing either a club or a spade from a standard (52-card)deck of playing cards?

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Given that on one section of the SAT the mean is 500 and the standard deviation is 100,what is the approximate probability of selecting a student whose score is 300 or lower followed by selecting a student whose score is 700 or higher on the test?

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Explain how Type I and Type II errors are related to false alarms and misses.

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If weight in the general population is normally distributed with an average of 160 pounds and a standard deviation of 20 pounds what is the probability of selecting someone who weighs 120 or less pounds?

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Given that on one section of the SAT the mean is 500 and the standard deviation is 100,what is the approximate probability of a student scoring 700 or higher on the test?

(Multiple Choice)
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Failing to reject H0 when we should have rejected it is a _____ error.

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Probability is

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When using a _____ hypothesis the researcher predicts the direction of the expected difference between the groups.

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When using a _____ hypothesis the researcher predicts that the groups being compared will differ,but does not predict how they will differ.

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One- and two-tailed hypotheses are both types of _____ hypotheses.

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Given that on one section of the SAT the mean is 500 and the standard deviation is 100,what is the approximate probability of selecting a student whose score is 400 or lower followed by selecting a student whose score is 500 or higher on the test?

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What is the probability of getting a 'head' on a single toss of a coin?

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The hypothesis predicting that differences exist between the groups being compared is to the hypothesis predicting that no differences exist between the groups being compared as _____ hypothesis is to _____ hypothesis.

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Given that on one section of the SAT the mean is 500 and the standard deviation is 100,what is the approximate probability of a student scoring 400 or lower on the test?

(Multiple Choice)
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No effect is to _____ hypothesis as effect is to _____ hypothesis.

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A false alarm is to a(n)_____ as a miss is to a(n)_____.

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What is the probability of drawing either a king or a queen from a standard (52-card)deck of playing cards?

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What is the probability of rolling a two-digit number in a single roll of a die?

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