Question

With H_a : μ ≠ 151
you obtain a test statistic of z=1.54. Find the p-value accurate to 4 decimal places.

p-value =

Please provide a step-by-step for a TI-84 calculator.

Answer 1

H_a : μ ≠ 151

z=1.54

Using following steps you can get P- Value over TI-84.

1. Press button 2nd

2.Press button VARS (DISTR)

3.Scroll down to normalcdf(

4.Press button ENTER

5.Now enter values as given

Lower : 154

Upper: 9999

: 0

   : 1

6. Now Press button Enter

Now  you will see Syntax  normalcdf(1.54, 9999, 0, 1)

7.Press button ENTER

8.Now you will get P-Value for one tail (Right tail) as follows.

0.0617801925

9.but we want for two tail so just multiply result by 2

0.0617801925 * 2 = 0.123560385

Thus we get,

P-Value = 0.1236