Question

Asked Nov 25, 2019

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Let *Z* be the standard normal variable. Make a rough sketch of the appropriate region under the standard normal curve. (Do this on paper. Your instructor may ask you to turn in this work.) Find

P(Z < −0.72).

(Round your answer to four decimal places.)

Step 1

It is given that Z is the standard normal variable. The required probability can be drawn using MINITAB.

Step-by-step procedure to obtain normal probability distribution plot using MINITAB:

- Go to
**Graphs**>**Probability distribution plot**>**Normal**. - Enter
**mean**as**0 and standard deviation**as**1**. - Go to
**shaded area**>**select left tail and X-value**. - Enter
**X value**as**–0.72.** - Click
**OK**.

Step 2

Output using MINITAB i...

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