The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 349 and a standard deviation of 24. According to the standard deviation rule, approximately 95% of the students spent between ____$ and ____$ on textbooks in a semester.
Question 12
Type numbers in the boxes.
1 points
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 16. According to the standard deviation rule, ____% of people have an IQ between 52 and 148. Do not round.
Question 13
Type numbers in the boxes.
10 points
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 13. According to the standard deviation rule, only _____% of people have an IQ over 139.
Question 14
Type numbers in the boxes.
10 points
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of: μ= 310 and a standard deviation of: σ= 36.
According to the standard deviation rule, almost 2.5% of the students spent more than what amount of money on textbooks in a semester? ____
In: Statistics and Probability
Determine what type of statistical test should be used to answer each of the questions below. (You will only use each response one time.) One Mean One Proportion Proportions from Dependent Samples Two Independent Proportions Two Independent Means Means from Dependent Samples
What proportion of Americans believe in climate change?
Do college students change their view on climate change as they go through college? One hundred freshman are asked if they believe in climate change. The same students are asked four years later if they also believe in climate change.
Is there a difference in the proportion of men and women who believe in climate change?
What is the average amount of time that Americans spend watching or reading the news a day?
Is there a difference in the amount of time that college students spend reading or watching the news as they go through college? One hundred students were asked as freshmen and as senior how many minutes a day they spent reading or watching the news?
Is there is a difference in the amount of time that Republicans and Democrats spend watching or reading the news
In: Statistics and Probability
Two teaching methods and their effects on science test scores are being reviewed.
A random sample of 11 students, taught in traditional lab sessions, had a mean test score of 76.7 with a standard deviation of 3.2.
A random sample of 16 students, taught using interactive simulation software, had a mean test score of 83.2 with a standard deviation of 6.4.
Do these results support the claim that the mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software? Use a significance level of = 0.10 for the test.
(Assume that the population variances are not equal, i.e. set “pooled” to “no.”)
State the null and alternate hypotheses for this problem.
Group of answer choices
a.Ho:μtraditional<μinteractive;Ha:μtraditional≥μinteractive
b.Ho:μtraditional≤μinteractive;Ha:μtraditional>μinteractive
cHo:μtraditional≥μinteractive;Ha:μtraditional<μinteractive
d
Use your calculator to determine the p-value. Explain which test you used and what you entered into the calculator.
State your conclusion. Explain how you arrived at your conclusion.
What is your conclusion in the context of the problem?
In: Statistics and Probability
Required: Below are two independent scenarios involving
professional standards. For each scenario
students need to research the appropriate authoritative guidance
and report their findings. Specifically,
students need to use the “IRAC” format for reporting their research
findings. That is, students need to
identify the overarching “Issue” present for each scenario,
identify and appropriately cite the applicable
“Rule”. Students must then specifically demonstrate their
understanding of how the rule applies to given
scenario in an “Analysis” section and draw the necessary
“Conclusion” with regard to the disposition of
the issue identified.
Scenario 1: Ereq Sheldon is an audit partner for the public
accounting firm EMJAE, LLP. Ereq is
auditing ABC, a public company. ABC has requested a written report
on the application of accounting
principles for a specific transaction. ABC would like to include
this report to be distributed with the
audited financial statements. Ereq is unsure whether such an
engagement is appropriate.
Scenario 2: Qiana Syerre is a licensed CPA. One of Qiana’s
clients Crashco., an international airline, has
recently purchased some landing slots. Qiana is unsure whether the
amounts should be capitalized or
expensed?
In: Accounting
A life-insurance salesman spends 9 hours a week on the telephone soliciting new clients. From past experience, the salesman estimates that each hour spent calling students, blue-collar workers, and professionals will produce the following number of additional sales:
|
Number of Additional Sales |
|||
|
Hours Calling |
Students |
Blue-Collar Workers |
Professionals |
|
1 |
10 |
8 |
14 |
|
2 |
8 |
6 |
11 |
|
3 |
6 |
4 |
8 |
|
4 |
4 |
3 |
6 |
|
5 |
1 |
1 |
4 |
|
6 |
0 |
0 |
1 |
a. How should the life-insurance salesman allocate his phone-calling time to maximize the number of sales?
Hours spent calling students = ______
Hours spent calling blue-collar workers = ______
Hours spent calling professionals = ______
b. Now suppose the salesman decides to spend 16 hours a week soliciting new clients. How should he allocate his time?
Hours spent calling students = ______
Hours spent calling blue-collar workers = ______
Hours spent calling professionals = ______
In: Economics
In: Economics
4. University of Notre Dame is a premier institution that draws students from all over the world to its campus. Although it is privately funded, it aspires to world-class quality and reputation, which are enhanced when out-of-state residents enroll. Data suggest that in-state enrollment can be described by the equation:
QI = 25,000 - PI,
where QI = in-state enrollment and PI = in-state tuition. Out-of-state enrollment is given
by: QN = 13,500 - .5PN.
In: Economics
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores? Let d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course). Use a significance level of α=0.1 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course. Student 1 2 3 4 5 6 7 Score on first SAT 480 530 520 530 360 380 550 Score on second SAT 530 580 560 610 390 400 610 Step 1 of 5 : State the null and alternative hypotheses for the test.
In: Statistics and Probability
What is the difference between disabilities and handicaps? Include in your answer why it is important to avoid "labels" when speaking about these individuals.
What does intelligence mean? Include in your answer the differences between general, fluid and crystallized intelligence.
What is the theory of multiple intelligence? Hint: Your answer cannot be considered complete without mentioning Howard Gardner and the eight intelligences.
What is the triarchic theory of successful intelligence? Hint: Your answer cannot be considered complete without mentioning Robert Sternberg and the three kinds of "successful intelligence".
Describe the concept of intelligence quotient or IQ. What is meant by the "Flynn effect"?
What is the difference between learning styles and learning preferences? What learning style distinctions are most well supported by research?
What is IDEA and why is it important to students with disabilities? What is a learning disability?
What is meant by "Intellectual Disabilities"? What is Response to Intervention (RTI)?
Who are "truly" gifted students? Generally speaking, what are the characteristics of gifted students? What appears to be the origin of these gifts and how should these gifted students be supported in their learning outcomes?
In: Psychology
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores?
Let d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course)
. Use a significance level of α=0.05
for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course.
| Student | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Score on first SAT | 430 |
| 400 |
| 490 |
| 440 |
| 490 |
| 530 |
| 550 |
| Score on second SAT | 470 |
|---|
| 500 |
| 510 |
| 470 |
| 520 |
| 600 |
| 580 |
Step 1 of 5 :
State the null and alternative hypotheses for the test.
In: Statistics and Probability