Which of the following phrases go with an z-score that is in the rejection regio
ID: 3171342 • Letter: W
Question
Which of the following phrases go with an z-score that is in the rejection region of the sampling distribution of HO?
Fail to reject the null hypothesis
Z = 0
Reject the null
p is larger than .05
The statistics: z, t, F, r, are all known as __________ statistics.
parametric
causal
non parametric
non-robust
What is the range of the following data?
15, 9, 17, 12, 15, 19, 18, 15, 16, 10, 13
2
10
14.5
15
What statistic would determine if there were a significant XY relationship between two variables?
F test
Pearson "r”
CHI square
T-test
The probability of rolling a 5 on one roll of a standard six sided die is _____
.17
.50
.20
.25
If the relationship of two variables is curvilinear, we would expect the correlation coefficient “r” to be:
Close to +1.00
Close to -1.00
Very high, perhaps r = 6.66
Close to 0.00
When using a one-tailed hypothesis, the researcher predicts ________
The direction of the expected difference between the groups
That the groups being compared will differ in some way
Nothing
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a)Fail to reject the null hypothesis
b)Z = 0
c)Reject the null
d)p is larger than .05
Explanation / Answer
1) c) Reject the null
2) a) Parametric test
3) b) 10, range = max-min
4) b) Pearson's r test
5) Probability of rolling 5 on dice is =1/6
a) 0.17
6) If the relationship of two variables is curvilinear, we would expect the correlation coefficient “r” to be:
d) Close to 0
7) When using a one-tailed hypothesis, the researcher predicts
a) The direction of the expected difference between the groups
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