Question
A sample of freshmen takes a reading comprehension test and their scores are summarized below. If...
A sample of freshmen takes a reading comprehension test and their scores are summarized below. If the mean for the general population on this test is μ = 12, can you conclude that this sample is significantly different from the population. Test with α = .05. Include an effect size measure you find appropriate and explain why you chose what you calculated - you determine the tail and why.
Sample Scores: 16, 8, 8, 6, 9, 11, 13, 9, 10
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
A sample of freshmen takes a reading comprehension test and their scores are summarized below. If...
A sample of freshmen takes a reading comprehension test and
their scores are summarized below. If the mean for the general
population on this test is μ = 12, can you conclude that this
sample is significantly different from the population. Test with α
= .05. Include an effect size measure you find appropriate and
explain why you chose what you calculated - you determine the tail
and why. (up to 8 points)
Sample Scores: 16, 8, 8, 6, 9,...
A sample of freshmen takes a reading comprehension test and their scores are summarized below. If...
A sample of freshmen takes a reading comprehension test and
their scores are summarized below. If the mean for the general
population on this test is 15 and we test a no difference
hypothesis with an alpha of .05 ___________.Sample scores: 16, 8,
8, 6, 9, 11, 13, 9, 10
if you would reject the null respond with R if you would fail to
reject the null respond with F.
enter your calculated t-value rounded to two decimal places.
(remember...
A sample of 54 students participate in a reading intervention and their average spring reading comprehension...
A sample of 54 students participate in a reading intervention
and their average spring reading comprehension score was 78. A
teacher conducts a one-tailed significance test and compares this
score to the average score of all 5th graders from last year, which
was 74. The p-value was found to be 0.02. What is the most
appropriate conclusion?
A. conclude that the intervention is not effective
b. conclude that the sample of 54 students improved their
reading skills
c. Conclude that students...
A researcher wanted to investigate an effect of listening to hip-hop music on reading comprehension. She...
A researcher wanted to investigate an effect of listening to
hip-hop music on reading comprehension. She randomly selected a
sample of n = 36 college students.
The sample of students completed a reading comprehension test
while hip-hop music was played in the background. In the college
population, the mean reading comprehension test score is μ = 40 and
σ = 18. The sample of n = 36 students who took the test with
hip-hop music in the background had the...
1) State College is evaluating a new English composition course for freshmen. A random sample of...
1) State College is evaluating a new English composition course
for freshmen. A random sample of n = 25 freshmen is obtained and
the students are placed in the course during their first semester.
One year later, a writing sample is obtained for each student and
the writing samples are graded using a standardized evaluation
technique. The average score for the sample is M = 76. For the
general population of college students, writing scores form a
normal distribution with...
Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension...
Lucy wants to know how her fourth-grade daughter, Monica, scored
on a test of reading comprehension compared to the population of
other fourth graders in the school district. Luckily, Lucy has
taken this course and knows that a z-score will help her understand
Monica’s reading score in relation to the population.
Calculate the obtained z-score by hand. Describe
calculations
When alpha is set at .05, the critical value is ± 1.96. Should
the null hypothesis be retained or rejected? Explain...
The spreadsheet titled "Test Scores" shows the reading and writing scores a sample of 12 students...
The spreadsheet titled "Test Scores" shows the reading and
writing scores a sample of 12 students earned on a standardized
test. Assuming normal distributions and using an alpha level of
.05, conduct the appropriate test to see if there is a significant
difference between the population mean for the reading scores and
the population mean for the writing scores.
Student
Reading Score
Writing Score
1
448
308
2
598
593
3
527
430
4
582
448
5
589
393
6...
A researcher would like to determine whether an over-the-counter cold medication has an effect on mental...
A researcher would like to determine whether an over-the-counter
cold medication has an effect on mental alertness. A sample of n =
16 participants is obtained and each person is given a standard
dose of the medication one hour before being tested in a driving
simulation task. For the general population, scores on the
simulation task are normally distributed with a μ = 60 a n d σ = 8
. The individuals in the sample had an average score...
Administrators want to know the effectiveness of the Orange Grove Elementary reading program. The average reading...
Administrators want to know the effectiveness of the Orange
Grove Elementary reading program. The average reading comprehension
score is 22 for children of comparative age. The data below are
reading comprehension scores from a sample of children from Orange
Grove Elementary. Scores range from 0 - 40 with higher scores
indicating better reading comprehension. What can be concluded with
α = 0.05?
id
reading
35
36
37
38
39
40
41
42
43
44
45
10
11
12
13
14...
Regents are certain about the ineffectiveness of the Orange Grove Preschool reading program. The average reading...
Regents are certain about the ineffectiveness of the Orange
Grove Preschool reading program. The average reading comprehension
score is 25 for children of comparative age. The data below are
reading comprehension scores from a sample of children from Orange
Grove Preschool. Scores range from 0 - 40 with higher scores
indicating better reading comprehension. What can be concluded with
α = 0.01?
id
reading
35
36
37
38
39
40
41
42
43
44
45
10
11
12
13
14...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 27 seconds ago
asked 2 minutes ago
asked 5 minutes ago
asked 26 minutes ago
asked 30 minutes ago
asked 37 minutes ago
asked 51 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago