1. Given the population mean = 18, population = 4 and a data set below find the z score only for 15 from the list.

Data set: 12, 13, 15, 9, 4, 10, 30, 20 and 60.

2. Find the Z - score, given the population mean = 78, population = 10 an X value = 70

3.

O#3: Convert this non-standard curve to a standard normal curve. Make sure you leveled the z-score clearly! 24 36 48 60 72 84 96