At the top, the fill in is either: Rejecting the null hypothesis when its true O
ID: 3334154 • Letter: A
Question
At the top, the fill in is either: Rejecting the null hypothesis when its true OR Not rejecting the null hypthesis when it is false.
The next one is mutliple choice.
The next one is either: The area in the tails beyond each z-score OR The area between the z-scores
The next one is multiple choice
The last for the fill-ins:
In OR Not In
Can OR Cannot
Can OR Cannot
THANK YOU VERY MUCH!
4. Alpha level and the critical region Aa Aa The alpha level that a researcher sets at the beginning of the experiment is the level to which he wishes to limit the probability of making the error of Use the following Distributions tool to identify the boundaries that separate the extreme samples from the samples that are more obviously consistent with the null hypothesis. Assume the null hypothesis is nondirectional, meaning that the critical region is split across both tails of the distribution The z-score boundaries at an alpha level = .05 are: z = 1.96 and z =-1.96 z = 2.58 and z =-2.58 Q z = 3.29 and z =-3.29 To use the tool to identify the z-score boundaries, click on the icon with two orange lines, and slide the orange lines until the area in the critical region equals the alpha level. Remember that the probability will need to be split between the two tails To use the tool to help you evaluate the hypothesis, click on the icon with the purple line, place the two orange lines on the critical values, and then place the purple line on the z statistic. Standard Normal Distribution Mean = 0.0 Standard Deviation = 1.0 5000 2500 2500 0.67 0.67 The critical region is The z-score boundaries for an alpha level -.01 are: z = 2.58 and z =-2.58 z = 1.96 and z =-1.96 z = 3.29 and z =-3.29 Suppose that the calculated z statistic for a particular hypothesis test is 3.40 and the alpha is.01. This z statistic is the critical region. Therefore, the researcher reject the null hypothesis, and he conclude the alternative hypothesis is probably correctExplanation / Answer
A.1) The probability of making the error of rejecting the null hypothesis when its true
A.2) z=1.96 and z=-1.96
A.3) critical region is the area between the z-scores
A.4)z=2.58 and z=-2.58
A.5) Not in
A.6) Can
A.7)Can
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