1. Assume that the readings on the thermometers are normally distributed with a mean of 0 and standard deviation of 1.00C. A thermometer is randomly selected and tested. Draw a sketch and find the temperature reading corresponding to P86, the 86th percentile. This is the temperature reading separating the bottom 86% from the top. The temperature for P86 is approximately in ?

2. Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P7, the 7th percentile. This is the bone density score separating the bottom 7% from the top. The bone density score corresponding to P7 is?

3. Assume that the readings on the thermometers are normally distributed with a mean of 0 and standard deviation of 1.00C. Assume 2.4% of the thermometers are rejected because they have readings that are too high and another 2.4% are rejected because they have readings that are too low. Draw a sketch and find the two readings that are cutoff values separating the rejected thermometers from the others. The cutoff values are

(enter your response here)degrees.

4. Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 20% and highest 20%, indicating levels that are too low or too high, respectively. The bone density scores are?