Statistics Exam 3 Review - Statistics Exam 3 Review 6.2 6.3 6.5 Assume that the readings on the thermometers are normally distributed with a mean of 0

Statistics Exam 3 Review - Statistics Exam 3 Review 6.2 6.3...

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Statistics Exam 3 Review 6.2, 6.3, 6.5 Assume that the readings on the thermometers are normally distributed with a mean of 0 and standard deviation of 1.000. A thermometer is randomly selected and tested. In each case, draw a sketch , write algebraic expression and find the probability of each reading in degrees: 1. greater than 2.58 2. between 0.89 and 1.78 3. between -1.23 and 0.84 4. If 8% of the thermometers are rejected because they have readings that are too high, but all other thermometers are acceptable, find the reading that separates the rejected thermometers from the others. 5. If 5% of the thermometers are rejected because they are either too high or too low, find the two readings that are cutoff values separating the rejected thermometers from the others. 6. Replacement time for CD players is normally distributed with a mean of 7.1 years and a standard deviation of 1.4 years. Find the probability that a randomly selected CD player will have a replacement time less than 8.0 years.

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