Free

Midterm - Assignment Example

Comments (0) Cite this document
Summary
The results (as in table 1) indicate significant differences between the participants age (M = 24.51, SD = 2.09) and the population mean of 25; t(186) = -3.18, p = .00. This implies that most of the participants of the present study had a lower age as compared to the average of…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.7% of users find it useful
Midterm
Read TextPreview

Extract of sample "Midterm"

Statistics Question Given the following data; Liberal arts; xbar1 = 16.20, s1 = 2.30, n1 = 236 and Other; xbar2= 13.70, s2 = 9.00, n2 = 321
Step 1: The assumptions of normality of the populations from which the samples are derived are assumed to hold. Moreover, the samples are independent and standard deviations are known.
Step 2: We wish to test the hypotheses that;
H0: There is no statistically significant difference in mean between students majoring in Liberal Arts and other students on the average number of books read per year.
H1: There is a statistically significant difference.
Alternatively, this can be stated as;
H0: μ1 – μ2 = 0, where μ1=mean for Liberal Arts and μ2=mean for others.
H1: μ1 ≠ μ2
Step 3: We set α = 0.05
Step 4: Degrees of freedom are obtained as follows;
df1 (for Liberal Arts) = n1 – 1 = 236 – 1 = 235
df2 (for Others) = n2 – 1 = 321 – 1 = 320
dftotal = (n1 + n2 – 2) or (df1 + df2) = (235 + 320) = 555
Step 5: Since this is a 2-sided test, the critical region is given by t.025, 555= tcritical = 1.96
Step 6: Therefore, we compute the test statistic, t, as follows;
(Montgomery & Runger 2002, p. 339)
Where;
(xbar1 – xbar2) = Observed difference between sample means.
(μ1 – μ2) = Expected difference between population means if H0 is true.
 = Estimate of the standard error of the difference between two sample means.
Where the pooled estimate of variance is given as;

Step 7: Therefore, t = 4.17 > tcritical = 1.96
Step 8: Decision: The null hypothesis (H0) is rejected.
Question 2
The results (as in table 1) indicate significant differences between the participants age (M = 24.51, SD = 2.09) and the population mean of 25; t(186) = -3.18, p = .00. This implies that most of the participants of the present study had a lower age as compared to the average of the population age.
Table 1
Results for mean differences between the sample mean age and population mean age
N
Mean
SD
t
df
Sig.
95% CI
Participant’s Age
187
24.51
2.09
-3.18
186
.00*
[-.79, -.18]
Note. CI = confidence interval
*p < .05
Question 3
Methods
Participants
Before conducting the study, informed consent was first sought from the potential participants who mainly included members of the public. The study recruited a total of 187 participants of whom 76 were assigned the vignettes about a 13-year old and 111 were assigned the vignettes about a 16-year old.
Materials
The materials utilized in the present study included two vignettes, which described a crime. These vignettes were used to collect data from the participants.
Design
The present study involved a between-subjects design. This was pertinent in determining whether the participants who read a vignette about a 13 year old were as more likely to sentence a defendant to LWOP as those who read a vignette about a 16 year old. In this context, the dependent variable was life without parole “LWOP” while the independent variable was the defendant’s age.
Procedure
There were two main variables to be examined in the present study; LWOP and defendant’s age. The vignettes were randomly assigned to the participants. The participants recorded their responses for variable LWOP on a 5 point Likert-type scale (1 = very unlikely, 5 = very likely). On the other hand, the variable defendant’s age had two categories; 13-year old defendants and 16-year old defendants.
Results
Analysis
In order to compare the two groups, independent samples t-tests were conducted on the data obtained.
Findings
The results (as in table 2) indicated lack of significant differences between participants who read a vignette about a 13-year old (M = 1.89, SD = 1.21) and participants who read a vignette about a 16-year old (M = 2.14, SD = 1.34); t(185) = 1.30, p = .19. This implies that the participants who read a vignette about a 13-year old were as likely to sentence the defendant to LWOP as those who read a vignette about a 16-year old.
Table 2
Results for independent samples T-Tests
N
Mean
SD
t
df
Sig.
95% CI
Likelihood of sentencing to LWOP
111
2.14
1.34
1.30
185
.19
[-.13, .63]
Note. CI = confidence interval
References
Montgomery, D.C. & Runger, G.C. (2002). Applied Statistics and probability for engineers. 3rd ed. New York: John Wiley & Sons. Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Midterm Assignment Example | Topics and Well Written Essays - 500 words - 1”, n.d.)
Midterm Assignment Example | Topics and Well Written Essays - 500 words - 1. Retrieved from https://studentshare.org/statistics/1585376-midterm
(Midterm Assignment Example | Topics and Well Written Essays - 500 Words - 1)
Midterm Assignment Example | Topics and Well Written Essays - 500 Words - 1. https://studentshare.org/statistics/1585376-midterm.
“Midterm Assignment Example | Topics and Well Written Essays - 500 Words - 1”, n.d. https://studentshare.org/statistics/1585376-midterm.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Midterm

MidTerm

...?The Yellow Wallpaper Charlotte Perkins Gilman’s late nineteenth century story en d The Yellow Wallpaper is recognized as ic American literature, but opinions differ regarding the meaning of the story and the approach that should be used in order to grasp its deep significance. On the surface the work tells the story of a young wife’s move to an old house with her husband, and the way she increasingly becomes drawn to the yellow wallpaper that is to be found in one of the rooms. Clearly there is more to the tale than this, however, and though the story begins in a light-hearted manner, with descriptions of the strange old house, it soon turns into a much darker description of the narrator’s decline into some kind of mental illness...
4 Pages(1000 words)Term Paper

Midterm

... of the of the 15 July Strategy David Hyman, Chief Executive of MOG (an Internet Music service that develops mobile software), says: “The mobile platform that creates the most ways to make money wins” (Burrows 28-34). Apple Incorporated is leading from the front and is substantially far from competitors (Burrows 28-34). Software developers working for the company have already developed more than 125,000 mobile applications that are compatible with Apple devices. The number of mobile applications is seven times more than Android that is a Google product. For this reason, as per the market research organization named as IDC (Burrows 28-34), the never ending diversity of mobile application development has facilitated iPhone... of the of the 15...
10 Pages(2500 words)Assignment

MIDTERM

...?Background of the Problem The children entering the schools these days are generally not prepared for the school learning. They lack the very basic skills which are required for school learning i.e. vocabulary, sentence structure etc. The sole reason behind the fact that children lack these basic skills, and are not ready for the school, when they should be, is the fact that they do not have the required experience with the books. The children whose parents and siblings are regular readers, and who have read tens of picture books before coming to the school are very well prepared for school learning. The children we have in the explained scenario are suffering from an acute lack of this essential reading. Since the parents... of the Problem...
3 Pages(750 words)Essay

Midterm

... Diversity in American Society Gracai refers to race as the particular to the external appearance of an individual’s body(3). Determinant features of one’s race include skin color that can be black, white or brown, nature of one’s hair, color of one’s eye, structure of one’s jaws, bones, and sometimes language and cultural practice of a given individual. Race is more dependent on biological features and genetic traits that are imminent on the surface of the body of an individual. According to Gracia, ethnicity refers to the association of an individual to other people with similar character traits that include common heritage, common native language, common cultural practices, and common beliefs and sometimes from common... Diversity in...
3 Pages(750 words)Essay

Midterm

... New Products for the Company It is rational for the company to switch into mining new products so as to safeguard the interests of the organization e.g. diamonds. Diamonds will expand the company’s name to other parts of the world. Diamonds are set to increase their values in the coming years. Hence a strategic move to safeguard the company future. For this project to prove viability, it is prudent for the company to evaluate and analyze the factors that will limit its ability to control the market. For instance, the company needs to determine; the target market, political aspects, economical aspects, beliefs and culture, and if there are any legal matters that the Company ought to familiarize with. Since, it is significant... New Products...
3 Pages(750 words)Essay

Midterm

... Psychology Gazzaniga maintains that, collectivism is defined as that practice or theory that normally makes some sorts of group as opposed to individual fundamental unit of social, philosophical, economical and political. Usually collectivists insist on associations or groups must supersede the claims issued by an individual. A good example of collectivism is in Asia especially in the Chinese culture. The Chinese culture normally view companies with philosophy that is less collective as cold and one which is not supportive at all. Further, in China it is observed that it is out of question to disagree with an individual opinion in public. This only happens in a personal or private atmosphere to protect the individual from “loss...
2 Pages(500 words)Essay

Midterm

... College: This was an era where the leader of the Greek soldiers, Agamemnon dictated the mainland and his island, Crete took hold of the political and military eminence of being master in the eastern Mediterranean. The Homeric age is also referred to as Late Minoan or Mycenaean, the culture, values and traditions are those characterized in Homeric Poems such as the Odyssey. These era traverses between the 1200- 1600 Mycenaean age. Legend has it that in this era the Oedipus tragedy emerged and stories illustrated in Aeschylus Oresteia were played out. This was also the fateful time of the renown Trojan War happened which left the Greeks and natives alike bereaved and mourning for their beloved and brave men who perished as heroes... College:...
5 Pages(1250 words)Essay

Midterm

... Midterm Exam Question According to Efron, Weitzman, & Lehmann (56), Abraham indeed moved from Canaan when the country washit by drought. Abraham was attracted by the irrigation done in Egypt with the use of water from river Nile. However, there is no evidence that Abraham indeed entered Egypt. On the contrary, archaeological evidence point to another Abraham figure that could have entered Egypt at the time. This Abraham figure is believed to have entered Egypt in the first half of the second millennium B.C. Biblical evidence, on the other hand, point that Abraham entered Egypt in a much earlier date. Although it is clear that Abraham moved from Canaan, there is no historical evidence that he ended up in Egypt. Consequently... Midterm Exam...
2 Pages(500 words)Essay

Midterm

...Q One big property issue is whether parents should leave property to their children or not. This is a serious family issue, as fight ensues among family members, claiming their right over parental property. One solution to the problem is to sell the property and divide the money equally among the claimants after the death of parents. Parents need to seriously consider this issue so that after their death there are no clashes. It is also advisable to consult an estate planning attorney and a financial advisor to discuss the property settlement issue (Nash 1). This issue has many sub issues, such as opinions of children on parents’ decisions. Monetary urgencies of children could be varied, as one child might require funds for own... One big...
4 Pages(1000 words)Admission/Application Essay

Midterm

...Part IV question Medieval and artists represent meaning using figurative expressions, which need to be interpreted to bring out the actual meaning. Rather than trying to represent the surface appearance of things, they bring meaning that is hidden beneath the surface of things. For instance, White in his book of the beast uses a lion in contrast to humans. A lion does not get angry if not wounded or offended. They also do not prey on children or women. It shows how humans can be more than beasts. Humans are quick to anger and attack even if not offended. Lion is the cruelest beast but still shows compassion. Compassion that is not normal among humans. White brings out the beast nature of humans. Humans describe wild animals... IV question...
1 Pages(250 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Midterm for FREE!

Contact Us