if you conduct a study with 5 groups and 40 people, what would your "degrees of freedom between" be?
Given,
k = number of groups = 5
n = total sample = 40
Degrees of freedom between = dfbetween = k - 1 = 5 - 1 = 4
if you conduct a study with 5 groups and 40 people, what would your "degrees of...
You intend to conduct an ANOVA with 4 groups in which each group will have the same number of subjects: n=16n=16. (This is referred to as a "balanced" single-factor ANOVA.) What are the degrees of freedom for the numerator? d.f.(treatment) = What are the degrees of freedom for the denominator? d.f.(error) =
You intend to conduct an ANOVA with 42 subjects, which will be divided into 7 treatment groups. What are the degrees of freedom for the numerator? d.f.(treatment) = What are the degrees of freedom for the denominator? d.f.(error) =
How could you conduct a study on the extent to which people obey authority in a way that minimizes risks and deception as much as possible? (Note: Such a study would not have to look at all like Milgram’s.) Provide a substantive, complete summary of the proposed study and how it minimizes risks/deception.(3 paragraphs at least)
1 and 2 please
1. Explain why you would conduct a t test rather than a z test. In other words, what is the difference between a one sample t test and a one sample z test? 2. Because of what is discussed in question 1, some of the components of calculating at value are different from the components of a z value. Specifically, the t value utilizes degrees of freedom. Explain what degrees of freedom means (you can include...
6. Consider the following study results concerning Age and Church Attendance: Age 50-59 Church Attendance 20-29 72 78 94 106 Yes No 63 87 21 69 Test to see if the proportion of people who attend church is the same for all age groups. (α-0.05) a) How many degrees of freedom are in the test? b) What is the value of the test statistic? c) Do the proportion of people who attend church differ among the age groups? Explain. d)...
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 5% margin of error at a 95% confidence level, what is the minimum sample size needed for the study? Give your answer as a whole number.
4) A study of depression and exercise was conducted. A total of
5 groups were used: each group differs by the extent to which group
members exercise. A depression rating (scale: 1-100, a continuous
variable) was given to all 1215 participants in the sample. An
incompleted ANOVA table is provided below. What is the obtained F
(i.e., value in Cell [8])?
Sum of Squares
df
Mean Square
F
Between-Group
[1]
[2]
[5]
[8]
Within-Group
138
[3]
[6]
[9]
Total
220...
Briefly describe how you would conduct a mixed methods study that focuses on the association between Mental Distress and HIV infection in an adult population. Address what type of mixed methods study and the level of Mixing.
The math achievements scores of two groups, each with 20 students, were compared. The degrees of freedom for the t-test would be: 40 18 42 38 As part of a study of the effect of zombie shows on the walking style of adolescents, researchers measured the gait of 100 subjects (using the ZombieTron 6000) before and after watching a 6 hour Walking Dead marathon. They wanted to see if the adolescents incorporated more “zombie” elements into their gait after this...
Analysis of variance compares the means of a response variable for several groups. ANOVA compares the variation within each group to the variation of the mean of each group. The ratio of these two is the F statistic from an F distribution with (number of groups - 1) as the numerator degrees of freedom and (number of observations - number of groups) as the denominator degrees of freedom. You intend to conduct an ANOVA with 4 groups in which each...