1) What is the probability that Z is less than minus -0.23 or greater than the? mean. (Mean- 0, Standard Dev- 1)
2) Given a normal distribution with μ=50 σ=4?, and given you select a sample of n=100?,
There is a 35?% chance that X is above what? value?
3) With 41 ?observations, the smallest of the standard normal quantile values covers an area under the normal curve of __/42 = __ . The corresponding? Z-value is -1.98. The largest of the standard normal quantile values covers an area under the normal curve of __/42 = __. The corresponding? Z-value is +1.98. The middle of the standard quantile values covers an area under the normal curve of __/42 = __. The corresponding? Z-value is 0.00.