Psy325 Weeks 1 5 Quiz Questions And Answers 100 On Each Week
PSY325 WEEKS 1-5 QUIZ QUESTIONS AND ANSWERS 100% on each quiz.
Week 1- Quiz
Which of the following is not a measure of central tendency?
Any subset of a population, defines ____________.
The bell curve is actually which of the following?
In a group of students where most are female, Mo = female. true or false
Data which have consistent gaps between integers but no meaningful zero are data of what scale?
What determines the height of each bar in a histogram?
For the values, 3, 5, 6, 7, 8, 8, 9, 10, R = _________.
In a graph, the point of origin marks ______________.
Values that indicate the relevant characteristics of a group to be studied are ___________.
We have the following values in a stem-and-leaf display: 2, 10, 14, 16, 17, 22, 23, 29. How many stems will there be?
Week 2- Quiz
Is the sample significantly greater than the population specifies ___________.
Based on past experience, the probability that the sun will rise tomorrow is ________.
What advantage does the one-sample t offer over the z-test?
If x = 12, M = 10 and s = 2, z = _______.
mM indicates variability in the distribution of sample means. true or false
How does one-sample t compensate for the risk in estimating parameters?
The standard normal distribution always has a mean = 0 (t). true or false
The central limit theorem maintains ____________.
The table value z = .70 is .2580. What percent of the population occurs below that point?
Degrees of freedom refers to ____________.
How are degrees of freedom related to critical values of rxy?
The criterion variable in regression is also called the dependent variable.
The size of the standard error of the estimate is increased by the following except:
If a scatter diagram is used to show how 30 people score on 2 variables, the scatter diagram will have___axes and___dots.
Any significant correlation will provide a better than chance prediction of y from x. True or false
Which of the following defines the intercept value in a regression solution?
If a variable coded 1 in a point-biserial correlation is changed to a coding of 0 what is the effect on the coefficient?
The Sxy in a Pearson correlation formula defines which of the following?
A negative correlation between the predictor and criterion variables will be reflected in __________.
What is the normality requirement for ordinary least-squares regression?
Note: there are a few extra questions located in the answer sheet as I took a couple tests more than once to see if questions changed each time!
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