PSY 325 Week 2 Quiz
PSY 325 Week 2 Quiz
PSY 325 Week 2 Quiz Set 1
1. Question : The table value z = .70 is .2580. The z = .70 value occurs at what equivalent percentile?
2. Question : Rejecting the null hypothesis is the same as saying _____________.
3. Question : If the z transformation is used with population data, M is replaced by what symbol?
4. Question : How does the standard normal distribution differs from other normal distributions?
5. Question : A one-sample t value is statistically significant in which situation?
6. Question : All standard scores have which characteristic in common?
7. Question : If x = 12, M = 10 and s = 2, z = _______.
8. Question : The distribution of sample means refers to _______________.
9. Question : A distribution where the mean and standard deviation have pre-determined values calls for ________.
10. Question : If the mean of the distribution of sample means isn’t given, how is it determined?
PSY 325 Week 2 Quiz Set 2
Question :The table value z = .70 IS 2580. What percent of the population occurs below that point?
The z-test asks whether the population from which thesample was drawn has the same mean as the population to which it is compared True.
Question 3
4. Based on past experience, the probability that the sun will rise tomorrow is?
5 Rejecting the null hypothesis is the same as saying?
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6 How many standard deviations below is 3 if z= -1.75
7 Degrees of Freedom refers to
How many values can vary
8 If instead of z = (x – M) / s the formula is x = z(s) + M, what is the result?
9 How does standard normal distribution differ from other normal distributions?.
10 What is the similarity between the z test and one sample t test?
PSY 325 Week 2 Quiz Set 3
Based on past experience, the probability that the sun will rise tomorrow is ________.
The standard error of the difference is a measure of pooled variance.
The z scores is a ratio of difference to variability (t).
How is the z-test different from z-score analysis?
What advantage does the one-sample t offer over the z-test?
In a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur at 30 or below?
Which is true of a one-tailed test?
The distribution upon which the z-test is based has a mean of 1.0.
In a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur between 20 and 30?
The z-test asks whether the population from which the sample was drawn has the same mean as the population to which it is compared.
APA Writing Checklist
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