-
+1 - 312-224-1615
Get in touch with us
-
support@helpwithassignment.com
Send us an e-mail
Solution Library
State Null And Alternate Hypothesis For Testing Percentages And Probabilities
Question
A business analyst is studying trends related to university majors in the United States. Specifically, she is interested in the enrollment proportions for various majors, and which majors are the most popular. According to the National Center for Education Statistics (NCES), the distribution of granted degrees by program category is given in the table below.
|
Major |
Percentage of Degrees |
|
Business Administration (All) |
19.7 |
|
Other Major |
29.1 |
|
Biological and Biomedical Sciences |
3.2 |
|
Social Sciences |
5.2 |
|
Visual and Performing Arts |
3.8 |
|
Health Science |
12.7 |
|
Education |
9.2 |
|
Engineering |
3.5 |
|
Liberal Arts and General Studies |
9.6 |
|
Psychology |
4 |
|
Grand Total |
100 |
The analyst finds that in the 2012 General Social Survey, the observed numbers of persons (a total of 359) graduating with degrees in these programs are as follows:
|
Major |
Count |
|
Business Administration (All) |
75 |
|
Other Major |
95 |
|
Biological and Biomedical Sciences |
8 |
|
Social Sciences |
31 |
|
Visual and Performing Arts |
14 |
|
Health Science |
43 |
|
Education |
49 |
|
Engineering |
22 |
|
Liberal Arts and General Studies |
13 |
|
Psychology |
9 |
|
Grand Total |
359 |
The analyst wants to determine if the distribution of degrees granted in 2012 differs from the distribution that NCES claims. She will use the chi-squared goodness-of-fit test.
a). State the null and alternative hypotheses that will be tested (convert the percentages as probabilities).
b). The output from a computer program used to run the test is given below. Chi-squared test for given probabilities
data: c(75, 95, 8, 31, 14, 43, 49, 22, 13, 9)
X-squared = 40.6562, df = 9, p-value = 5.776e-06
Show the last two (2)--and only the last two-- calculations involved in the computation of the test statistic.
c). State the conclusion in the context of the problem, based either on the rejection region or p-value approach, at the 0.05 level.
Summary
The question belongs to Statistics and it discusses about stating null and alternate hypothesis for testing the percentages and their probabilities.
Total Word Count 98
Download Full SolutionWHAT OUR STUDENTS SAY
I am very happy customer of the atomic theory assignment help services of HwA. The online atomic theory assignment expert was very attentive to all the points that were mentioned by me to be followed for writing the assignment. I did not have to give any sort of reminders for the work and I received with plenty of time for me to go through it.
Sylvia Robertson Student
The online chemical engineering transport phenomenon assignment help experts at HwA are very professional and dedicated to helping us students. Thanks to their efforts I now have a better understanding of the transport phenomenon and also my grades have improved a lot.
Beverly Miller Student
As a foreign student new to the methods of teaching in the States I desperately needed some personal tutoring with the topics of Stats for my graduate level program. HwA broke my misconception about online services being good only for school students and undergrads by providing me with excellent online stats tutoring for my Masters level requirements.
AnandVidyashankar Student
After I moved to Australia to study Computer Science and Engineering, I found out that the things are quite different than what it used to be in the Indian universities. The course structure is much more practical oriented and thus the numbers of assignments are also more. I was clueless and was struggling to cope when I came across HwA. Thanks to them I got through my first two semesters with good grades and that boosted my confidence. Now I am pursuing my post-graduation from a Queensland based reputed technology university and still taking help from HwA.
Gary Roberts Student
I had a research assignment where I needed to write a report on the local markets of Singapore. It was difficult getting help online as most of these assignment help services are located abroad somewhere in USA or UK. I was happy to see that HwA has tutors from Singapore itself and they dedicatedly cater to students like us, who are from or studying in Singapore
Rakesh Patel Student
Comments
this is a very good website
I have 50 questions for the same test your page is showing only 28
hi can you please help or guide me to answer my assignments. thanks
hi can anyone help or guide me to my assignments. thanks
This solution is perfect ...thanks
Hello Allison,I love the 2nd image that you did! I also, had never heard of SumoPaint, is something that I will have to exolpre a bit! I understand completely the 52 (or so) youtube videos that you probably watched. Sometimes they have what you want, sometimes they don't! However, it is always satisfying when you are able to produce something that you have taught yourself. Great job!Debra 0 likes
Perfect bank of solution.
great !
thanks for the quick response. the solution looks good. :)
thnx for the answer. it was perfect. just the way i wanted it.
works fine.