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Find two different ways to state that two population means are equal for a null hypothesis in a 2-sample z-test. Question 1 options: H0: 1=a
Find two different ways to state that two population means are equal for a null hypothesis in a 2-sample z-test.
Question 1 options:
H0: 1=a ; H0: 1 = b | |
H0: 1 = 2 ; H0: 1 2 | |
H0: 1 = 7; H0: 1 7 | |
H0: 1 = 2 ; H0: 1 - 2 =0 |
Question 2
A type I error occurs when the:
options:
test is biased | |
null hypothesis is incorrectly rejected when it is true | |
null hypothesis is incorrectly accepted when it is false | |
sample mean differs from the population mean |
Question 3
Which of the following symbols represent a confidence level?
options:
(1-)*100% | |
1- | |
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