critical region is (the area in the tails beyond each z scored or the area between the z scores) 2) the z stats is (in or not in) … 3) the researcher (can or cannot) reject…. 4) and he (can or cannot)conclude…

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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1) critical region is (the area in the tails beyond each z scored or the area between the z scores)
2) the z stats is (in or not in) …
3) the researcher (can or cannot) reject….
4) and he (can or cannot)conclude…

Standard Normal Distribution
FA
-4
-3
Mean = 0.0
Standard Deviation = 1.0
n
The critical region is
The z-score boundaries for an alpha level a = 0.01 are:
O z = 2.58 and z = -2.58
O z = 1.96 and z = -1.96
O z = 3.29 and z = -3.29
-2
.2500
-1
-0.67
.5000
0
0.67
.2500
1
2
3
Suppose that the calculated z statistic for a particular hypothesis test is 3.24 and the alpha is 0.01. This z statistic is
Therefore, the researcher
reject the null hypothesis, and he
Z
the critical region.
conclude the alternative hypothesis is probably correct.
Transcribed Image Text:Standard Normal Distribution FA -4 -3 Mean = 0.0 Standard Deviation = 1.0 n The critical region is The z-score boundaries for an alpha level a = 0.01 are: O z = 2.58 and z = -2.58 O z = 1.96 and z = -1.96 O z = 3.29 and z = -3.29 -2 .2500 -1 -0.67 .5000 0 0.67 .2500 1 2 3 Suppose that the calculated z statistic for a particular hypothesis test is 3.24 and the alpha is 0.01. This z statistic is Therefore, the researcher reject the null hypothesis, and he Z the critical region. conclude the alternative hypothesis is probably correct.
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