Suppose that I perform a one-way ANOVA to examine whether students in Finland, China, and Canada...
- Suppose that I perform a one-way ANOVA to examine whether students in Finland, China, and Canada differ in their average scores on an achievement test. I use random samples of 2000 students from each country and find that the F value in my ANOVA is statistically significant. What can I conclude from this? What do I know?
Homework Answers
Add Answer to:
Suppose that I perform a one-way ANOVA to examine whether
students in Finland, China, and Canada...
An accounting professor wants to know if students perform the same on the departmental final exam irrespective of the accounting section they attend. She randomly selects the exam scores of 39 studen...
An accounting professor wants to know if students perform the same on the departmental final exam irrespective of the accounting section they attend. She randomly selects the exam scores of 39 students from four sections. A portion of the output from conducting a one-way ANOVA test is shown in the accompanying table. Assume exam scores are normally distributed. a. Find the missing values in the ANoVA table. (Round intermediate calculations to at least 4 decimal places. Round "SS to 2...
Suppose that we want to investigate whether curfews correlate with differences in grades for students in...
Suppose that we want to investigate whether curfews correlate with differences in grades for students in middle school. We select a random sample of 81 middle school students. The variables are curfew (yes/no) and grade (a letter grade that represents the average grade across courses). Is there an association between grade and curfew? Or are these two variables independent? We use the data to conduct a chi-square test of independence at the 5% level. In the table, the observed count...
(4) [14 pts] Grades on a standardized test are known to have a mean of 1000...
(4) [14 pts] Grades on a standardized test are known to have a mean of 1000 for students in Canada. The test is administered to 453 randomly selected students in Alberta; in this sample, the mean is 1013 and the sample standard deviation is 108. (c) Another 503 students are selected at random from Alberta. They are given a 3-hour preparation course before the test is administered. Their average test score is 1019 with a standard deviation of 95. (i)...
I understand that one way ANOVA tells me that at least two groups are different from...
I understand that one way ANOVA tells me that at least two groups are different from each other, however it doesn't tell me which groups are different. If the results of my ANOVA were to return a significant f-statistic, how do I determine which ad hoc test I need to run to tell me exactly which groups have a difference in means?
a) Drop-down options: na, one-way ANOVA, within subjects ANOVA, or two-way ANOVA b) Drop-down options: Yes...
a) Drop-down options: na, one-way ANOVA, within subjects ANOVA,
or two-way ANOVA
b) Drop-down options: Yes or No
c) Drop-down options: na, Trivial Effect, Small Effect, Medium
Effect, Large Effect
e & f) Drop-down options: Yes or No
Application Exercise: A social psychologist is interested in how optimism is related to life satisfaction. A sample of individuals categorized as optimistic were asked about past, present, and projected future satisfaction with their lives. Higher scores on the life satisfaction measure indicate...
What is your favorite color? A large survey of countries, including the United States, China, Russia,...
What is your favorite color? A large survey of countries,
including the United States, China, Russia, France, Turkey, Kenya,
and others, indicated that most people prefer the color blue. In
fact, about 24% of the population claim blue as their favorite
color.† Suppose a random sample of n = 54 college students
were surveyed and r = 10 of them said that blue is their
favorite color. Does this information imply that the color
preference of all college students is...
What is your favorite color? A large survey of countries, including the United States, China, Russia,...
What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24" of the population claim blue as their favorite color.t Suppose a random sample of n 60 college students were surveyed and r 13 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either...
3) Suppose you are an educational researcher who wishes to examine the effect of a school...
3) Suppose you are an educational researcher who wishes to examine the effect of a school district's class size on its student achievement. Specifically, you are interested in whether in the U.S., on average, school districts with smaller class sizes perform differently on test scores than school districts with larger class sizes. To test this, you have conducted two surveys. The first survey randomly sampled 238 school districts with small class sizes. This survey found a sample average test score...
-If Argyle says that she has collected data that only tell her whether the cases are...
-If Argyle says that she has collected data that only tell her whether the cases are the same or different, one can accurately say that she has collected data on the _____ level. nominal ratio ordinal interval -which of these is an advantage of using a transformed score when reporting the score of an individual case? Transformed scores will be reported on the nominal level. Transformed scores will allow the mean score to be reported. Transformed scores provide a measure...
a researcher wants to know whether males and females consider personality or looks ate more important in mate selection. He decides to run a 2X2 ANOVA to examine the differences between what quality a...
a
researcher wants to know whether males and females consider
personality or looks ate more important in mate selection. He
decides to run a 2X2 ANOVA to examine the differences between what
quality attracts people more( personality/looks) and whether gender
(male/female) impacts the difference anwer the following questions
df Score (M Equal variances assumed 036 8494.584 233 Equal variances not 4.657 182.973 Independent Samples Test Hest for Equality of Means 95% Mean Std. Error Difference しDifference Sig (2-tailed) Lower Score...
An accounting professor wants to know if students perform the same on the departmental final exam irrespective of the accounting section they attend. She randomly selects the exam scores of 39 students from four sections. A portion of the output from conducting a one-way ANOVA test is shown in the accompanying table. Assume exam scores are normally distributed. a. Find the missing values in the ANoVA table. (Round intermediate calculations to at least 4 decimal places. Round "SS to 2...
Suppose that we want to investigate whether curfews correlate with differences in grades for students in middle school. We select a random sample of 81 middle school students. The variables are curfew (yes/no) and grade (a letter grade that represents the average grade across courses). Is there an association between grade and curfew? Or are these two variables independent? We use the data to conduct a chi-square test of independence at the 5% level. In the table, the observed count...
(4) [14 pts] Grades on a standardized test are known to have a mean of 1000 for students in Canada. The test is administered to 453 randomly selected students in Alberta; in this sample, the mean is 1013 and the sample standard deviation is 108. (c) Another 503 students are selected at random from Alberta. They are given a 3-hour preparation course before the test is administered. Their average test score is 1019 with a standard deviation of 95. (i)...
a) Drop-down options: na, one-way ANOVA, within subjects ANOVA,
or two-way ANOVA
b) Drop-down options: Yes or No
c) Drop-down options: na, Trivial Effect, Small Effect, Medium
Effect, Large Effect
e & f) Drop-down options: Yes or No
Application Exercise: A social psychologist is interested in how optimism is related to life satisfaction. A sample of individuals categorized as optimistic were asked about past, present, and projected future satisfaction with their lives. Higher scores on the life satisfaction measure indicate...
What is your favorite color? A large survey of countries,
including the United States, China, Russia, France, Turkey, Kenya,
and others, indicated that most people prefer the color blue. In
fact, about 24% of the population claim blue as their favorite
color.† Suppose a random sample of n = 54 college students
were surveyed and r = 10 of them said that blue is their
favorite color. Does this information imply that the color
preference of all college students is...
What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24" of the population claim blue as their favorite color.t Suppose a random sample of n 60 college students were surveyed and r 13 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either...
3) Suppose you are an educational researcher who wishes to examine the effect of a school district's class size on its student achievement. Specifically, you are interested in whether in the U.S., on average, school districts with smaller class sizes perform differently on test scores than school districts with larger class sizes. To test this, you have conducted two surveys. The first survey randomly sampled 238 school districts with small class sizes. This survey found a sample average test score...
a
researcher wants to know whether males and females consider
personality or looks ate more important in mate selection. He
decides to run a 2X2 ANOVA to examine the differences between what
quality attracts people more( personality/looks) and whether gender
(male/female) impacts the difference anwer the following questions
df Score (M Equal variances assumed 036 8494.584 233 Equal variances not 4.657 182.973 Independent Samples Test Hest for Equality of Means 95% Mean Std. Error Difference しDifference Sig (2-tailed) Lower Score...
Most questions answered within 3 hours.
-
According to the network system security, please explain:
1- What is canary and how it does...
asked 11 minutes ago -
Study the provided BagInterface and the methods implemented in
the ResizableArrayBag
For the following methods that...
asked 10 minutes ago -
Enter your answer in the provided box. To what fraction of its
original volume, Vfinal/Vinitial, must...
asked 46 minutes ago -
Can you figure out if any R functions used to subset a time
series 1 or...
asked 1 hour ago -
Which of the following is correct?
A. APC + MPS = 1
B. APS + MPS...
asked 1 hour ago -
Given a regression sum of squares equal to 2373.59 and a total
sum of squares equal...
asked 3 hours ago -
Compare and contrast the linear motion and angular motion
equations F ma and . That is,...
asked 2 hours ago -
Now that this course has taken you on a journey of introduction
to the world of...
asked 2 hours ago -
The sandwich maker of the EE-Cole-Eye Sandwich Truck was just
fired (for a reason described below)...
asked 5 hours ago -
Name the following coordination compounds using systematic
nomenclature.
1. [Co(H2O)6]Cl2:
2. [Cr(NH3)6](NO3)3:
3. K4[Fe(CN)6]:
4. Na[Au(CN)4]:...
asked 4 hours ago -
Propose an efficient synthesis of 2-Bromo-5-nitrotoluene from
benzene. Hint: 3 steps. Consider directing effects of substituents....
asked 6 hours ago -
This assignment will explore the impact of corporate decisions
on a local versus a global perspective....
asked 5 hours ago