Chapter 5, “z-Scores: Location of Scores and Standardized Distributions” (pp. 131–158)
Use the Normal Calculator to calculate the areas of the normal distribution. To do this, use the normal calculator to find the proportion of a normal distribution with a mean of 80 and a standard deviation of 14 that is above 90 Then, using the same mean and standard deviation, find the area that is between 100 and 110.
Review how to use the Inverse Normal Calculator in the Learning Resources.
To do this, use the inverse normal calculator to find the score corresponding to the 25th percentile of a normal distribution with a mean of 100 and a standard deviation of 15 and find the area.
Assignment is here:
1.An explanation of what a normal distribution means, including its shape and features.
2. Explain what it means when the normal distribution has a mean of 80 and a standard deviation of 14 that is above 90. Explain how this changes when the area is between 100 and 110.
3. Explain what it means when a score is in the 25th percentile of a normal distribution with a mean of 100 and a standard deviation of 15.
