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1402 Uppsatser om Hypothesis tests - Sida 41 av 94
Undersökning av potentiella probiotiska organismer i tarmmikroflora hos häst med speciell hänsyn till Lactobacillus spp. :
The aim of this study was to isolate and identify Lactobacillus species indigenous to the gastrointestinal microflora of Swedish horses. These lactobacilli are to be used as probiotic candidates in research concerning antibiotic-associated diarrhoea in horses.
Eight horses, age 6-10 years, were selected from a riding school for collection of faeces samples. Man Rogosa Sharp medium and gram staining were used for the selection of supposed lactobacilli. We could identify 33 isolates of supposed lactobacilli. With the use of API tests 22 of these 33 isolates could be identified.
Överreaktion på aktiemarknaden - Myt eller verklighet?
PurposeThe purpose of this paper is to assess whether the overreaction found in ?Does the Stock Market Overreact?? by DeBondt and Thaler still persists today, and by equivalence test if a trading strategy based upon these assumptions would generate abnormal returns. MethodThe research has been carried out by studies of the stocks that for a prior period of one year has over or underperformed their benchmark. The stocks used in my study are all part of S&P500 index, and the period of study runs from three to five overlapping years over the last twenty years. ResultsMy tests indicate that the type of overreaction proposed by DeBondt & Thaler still is present, at least considering the stocks that during the formation period were winners..
Öga-nacke/skuldra problem hos en grupp synskadade män och kvinnor i åldrarna 17-92 år : En kvantitativ tvärsnittsstudie
The purpose of this study was to describe the prevalence of self-reported visual and neck/shoulder complaints among individuals with a low vision diagnosis. The study also aimed to examine whether there was an association between the degree of self-rated visual and the neck/shoulder complaints. There was a questionnaire survey that was conducted on patients that visits an eye center in a county in central Sweden. There were a total of 18 people participated in the survey, between 17-92 years old. The questionnaire contained 22 questions and was analyzed with SPSS.
Organisera mera : En studie i att utforma riktlinjer fo?r organisering av information i ett specialutformat anva?ndargra?nssnitt
I have in this thesis studied how guidelines for organizing information in a custom- made user interface could be made. Teletal is service with a special designed user interface were information is stored. The purpose of this study is to encourage a consistent organization, and management of information in a user interface. The methods used in this study are as follows ? qualitative interviews and two card-sorting tests, of which one was closed and the other open.
Medierepresentationen av världens länder : Strukturer i fyra svenska nyhetstidningar
This essay casts light on the quantitative aspect of the media representation of foreign news. The purpose of the essay is not only to describe the media representation of the countries of the world, but also to explain the representation out of structures that are mirrored by the mass media. Four hypotheses are stated that are operationalized in the research. These are treating four different factors that are believed to affect the representation, economy, geographical distance, cultural distance and the size of the population. A fifth hypothesis is stating that economy is the most influential of the factors.
Vilken ledarstil är önskvärd ur ett medarbetarperspektiv? : En kvantitativ studie om ledarstilar.
The purpose of this study was to examine the leadership style that is preferred by the employees from a psychosocial- and productive perspective. The study is based on Lewin et al´s research on the three leadership styles authoritarian, democratic and laissez-faire leader. This is a quantitative study with a questionnaires as data collection method. The sample consisted of individuals working in a municipality in one nursing unit. The data from the survey were analyzed by three separate one-way depending ANOVA in IBM statistics SPSS 22.
Link QualityControl (LQC) i GPRS/EGPRS
This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data. The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected.
Fysiologi och beteende hos golden retriever i hemmiljö och under en testsituation
To fit into our society the dogs of today need a good mentality. To investigate their mentalitydifferent behavior tests have been developed. The tests are useful tools in the selection ofbreeding animals as well as for working and companion dogs. To counter the demand for atest that could be suited for all kind of dogs, regardless of their future function, the mentalitytest Beteende- och personlighetsbeskrivning hund (BPH) was developed. BPH consists ofseven subtests that expose dogs to various situations that can be found in everyday life, suchas meeting an unfamiliar person, sudden noises and suddenly appearing objects.The aim of this study was to find out if there are differences in physiological values betweenindividuals, validate the behavior observations during BPH and get aware of how the dogsexperience the situation.
Rackmonterad elektrolyscell
This report shows methods and workflow when exploring the potential to change Outotecs HCD Silver Electrolysis machine to a module type. It?s done as an attempt to lower the workshop and installation costs and to give customer a more accurate prize directly. To do this a concept was produced which was set to a stress test. Additional objectives were to investigate freight and installation procedures, pneumatic connections and to calculate the difference in cost.Once the concept, a reinforced type of the original frame, was chosen stress tests in computer simulations were made and appropriate alterations were made.
Deltid och kön: En undersökning av deltidsarbetets utveckling under åren 1987-2005
This paper aims at assessing the relationship between female and male part-time employment and the business cycle in Sweden during the years 1987?2005 using quarterly time-series data and two alternative indicators of the business cycle. It further aims at determining whether the share of women working part-time has changed over time. Key results include that the relationship between the business cycle and female part-time employment is found to be significant and countercyclical. No significant effect is however found for men.
Urvalsdesign för SCB:s undersökning av föetagens ekonomi
Tree fiber lengths controls properties like strength and smoothness in paper and other wood products. For forest researchers it is of interest to be able to determine the fiber lengths in standing trees. Mo?rling et al. (2003), among others, have developed methods to estimate fiber length distributions in standing trees without damaging them.
Förmågan att spegla känslor, avslöja lögner och gradera säkerhet : finns det ett samband dem emellan?
Underlättar kongruens mellan sinnestillstånd och påstående (vad gäller dess värdeladdning) vid bedömning av ett påståendes sanningshalt? Denna fråga uppkom via studier av embodiment och lögner, forskning från de båda områdena påvisar nämligen att olika ?kroppsliga signaler? kan hjälpa oss att avslöja om andra människor ljuger. Frågan har undersökts via en faktoriell design med repeterade mätningar där deltagarna försattes i olika sinnestillstånd varpå de utsattes för olika stimuli och fick göra olika bedömningar. Resultatet visade att kongruenta betingelser varken underlättar eller påskyndar vid bedömning av ett påståendes sanningshalt, däremot erhölls ett signifikant resultat som indikerade att kongruenta betingelser ökar människans konfidensnivå (högre grad av säkerhet vad gäller att en korrekt bedömning gjorts) vid bedömning av falska påståenden..
Att effektivt sälja Sverige : Värdet av VisitSwedens tillvägagångssätt för att attrahera utländska resenärer
Our main objective with this essay was to study VisitSweden?s effort to sell Sweden to foreign markets.This has been studied in relation to VisitScotland work and approach. We collected empirical data consisting of document studies and interviews with representatives of VisitSweden and VisitScotland. In addition, we have supplemented with an interview with a representative of Svensk Destinationsutveckling AB. We based our analysis of our empirical data on previous research in destination marketing.
Manliga och kvinnliga gärningsmän - så framställs de av Aftonbladet : En kvantitativ studie om hur Aftonbladets framtällning av gärningsmän skiljer sig beroende på om brottet begåtts av en man eller en kvinna.
Brottslighet och kriminaljournalistik har länge varit en stor del av medieinnehållet. Men vad är det som avgör hur stor uppmärksamhet ett specifikt brott får? Det här är en kvantitativ studie av 100 nummer av Aftonbladet 2009 där vi ger svar på hur tidningen framställer manliga och kvinnliga gärningsmän.Studien har sin utgångspunkt i ?the chivalry hypothesis? som går ut på att kvinnor får mildare behandling både av rättsväsendet och av medierna. Den har tidigare testats inom medier av bland andra Weimann/Fishman och Grabe. I den här studien testas om hypotesen är giltig även när det gäller en svensk tidning.Resultaten visar att Aftonbladet gör vissa skillnader, inte bara på grund av vilket kön gärningsmannen har utan också beroende på vilket brott denne begår.
FALSKA MINNEN OCH SJÄLVKÄNSLA - med utgångspunkt i DRM-proceduren
Does a person´s self esteem contribute in the process of creating false memories? Previous studies show that mood is related to false memories as well as to self esteem. This led to the focus of this study, to examine the relationship between false memory and self esteem. The question is examined by comparing the amount of false memories produced in the Deese-Roediger-McDermott (DRM) procedure with people´s scores on Rosenberg´s self-esteem scale. 59 people participated in a test with three different elements, a self esteem test and a memory test with both recollection and free recall.