Question

Compute the following probabilities for the standard normal distribution Z. A. P(0−1.4)=

A) 0.4641
B) 0.6006
C) 0.9192
D. P(Z<-1.8)=

Answer 1

To compute probabilities for the standard normal distribution Z, you can use the TI-83 or TI-84 calculator command invNorm to find the z-score.

Step-by-step explanation:

To compute probabilities for the standard normal distribution Z, you can use the TI-83 or TI-84 calculator command invNorm(0.95,0,1) to find the z-score. For example, P(0−1.4) can be calculated by finding the area to the left of -1.4, which gives a probability of 0.9192. To find P(Z<-1.8), you can use the z-table to find the area to the left of -1.8, which is 0.0359. Since the z-test is negative, you can multiply this probability by 2 to account for the right tail and obtain a p-value of 0.0718.