## CHECK THESE SAMPLES OF Hypothesis testing

Rejection of the null hypothesis leads to the acceptance of the alternative hypothesis. The alternative hypothesis states that there is a difference between the procedures. It is denoted by H1.

Assuming that the upstream BOD and downstream BOD are normally distributed, we test using significance level of 0.05 whether BOD increases at the downstream. The significance level of a statistical hypothesis test is a fixed probability of rejecting the null hypothesis H0 when it is in fact true. It is called a type I error and is set by the investigator in relation to the consequences of such an error. We want to make the significance level as small as possible in order to protect the null hypothesis and to prevent, as far as possible,...

5 Pages(1250 words)Essay

...Null **Hypothesis**: (H0) There is no relationship between level of education and lower income for a working adult. Alternative **Hypothesis** (HA Lowereducation will result in a lower income for a working adult.
The chosen alpha level is .05. The p-value should be less than .05. P-value is the probability of getting the results if the null were actually true. It is the probability you would be in error if you rejected the null **hypothesis**. The **hypothesis** will be rejected or accepted using = .05. If the p-value is less than .05, the normality assumption will be rejected and the t-**test** could not be conducted. Otherwise, if the p-value is greater than .05, there is insufficient evidence to suggest the distribution is not normal....

1 Pages(250 words)Thesis

...Unit 4 – **Hypothesis** **Testing** & Variance Type Here American InterContinental Employee job satisfaction is a primary managerial concern. Using T **test**, it was found that gender does not affect intrinsic job satisfaction and that position does not affect extrinsic job satisfaction.
Introduction
Employee job satisfaction is among a manager’s important concerns. This report looks at the possible causes of differences in the intrinsic and extrinsic job satisfaction of employees. Specifically, this report uses statistical tools to find out if male and female employees have different degrees of intrinsic job satisfaction and if hourly and salaried employees have different degrees of extrinsic job satisfaction.
**Hypothesis** **Test** #1 Looking...

2 Pages(500 words)Research Paper

...-psychosis drug while the experimental group will be rendered the new drug produced. Each patient will take 7.5/30 mg of drug. Using the CGI Scale, the researcher will assess the effect of drugs on the patients. The CGI Scale consists of interviewing patients and recording their behavior or response to the drug used. Furthermore, the metrics is utilized to determine the effect of drugs on the brain. This will be based on the scale developed by the Logothetis. After 6 months of observation, the data gathered will be tabulated based on the statistical tools used.
The null **hypothesis** is **tested** through t-**Test** and ANOVA in determining and comparing the effectiveness of drugs used for schizophrenic patients. The result is considered significant...

2 Pages(500 words)Essay

...**Hypothesis** **Testing** & Variance
Introduction.
A two tailed **test** of **hypothesis** at 5 percent significant level (μ = .05) is equal to inquiring whether the 95% interval of confidence for the means takes into consideration the hypothesized mean. Whenever the confidence interval includes the mean that is hypothesized an alternate or null **hypothesis** could be formulated. This implies that the null **hypothesis** cannot be ignored. This paper explores the t-**tests** and z-**tests**.
**Test** 1.
**Hypothesis** **Test** 1 looking at intrinsic satisfaction by Gender.
Alternate and null hypotheses.
H0: μ = 5.2 and H0 is not equal to 5.2. (alpha is 0.05)Table 1:
t-**Test**: Paired Two Sample for Means
Intrinsic
Gender
Mean
5.078788
1.5
Variance
0.570312
0.253846...

2 Pages(500 words)Research Paper

... at least two true statements, 1 and 2. The Cobbler’s third statement is not true since it contradicts his first statement. He says that he agree with the bakers third statement, which is in agreement with the Butcher’s second statement, which claims that the Cobbler did it. All of the Blacksmith’s statements are true; therefore, he is the only suspect that makes no false statement.
References
Poletiek, F. H. (2001). **Hypothesis** **Testing** Behavior. East Sussex: Psychology Press.... Logic Exercise **Hypothesis** **Testing**
The Poacher
The third statement made by Al, “Hunting is a source of food in this part,” is true, therefore, his other two statement, 1 and 2 are true. This means that Al may be innocent as he...

1 Pages(250 words)Assignment

...**Testing** **hypothesis** procedures **Hypothesis** **testing** is an instrumental tool to decision-making that identifies significance of relationships or changes in processes. Established significance calls for consideration of a hypothesized association in decision making while absence of significance means that the **hypothesis** is insignificant. When engaging in **hypothesis** **testing** procedures for the population with known standard deviation, a researcher needs to consider the involved standard error. This value is important in determining confidence limits for decision making over the **hypothesis** to be **tested** and is derived from the known standard deviation. When **testing** **hypothesis** for a population whose standard deviation is not known, however...

1 Pages(250 words)Essay

...**Hypothesis** **testing** al Affiliation) **Hypothesis** **testing** and data **Hypothesis** **testing** is a process that uses of selected datafrom samples to make conclusions if there is enough evidence to revoke the idea no changing is occurring in the population under study. **Hypothesis** **testing** is significant in determining whether the **test** data has any statistical importance. Statistical importance is found when it comes clear that the findings in the samples are likely not to occur if the findings are not present in the case population (Black, 1999).
**Hypothesis** **testing** divides into two categories: the null **hypothesis** and the alternative **hypothesis**. The null **hypothesis** is simple a statement that indicates that nothing is happening to the population...

1 Pages(250 words)Assignment

...**HYPOTHESIS** **TESTING** AND TYPE ERRORS Problems need to include all required steps and answer(s) for full credit. All answers need to be reduced to lowest terms where possible.
Answer the following problems showing your work and explaining (or analyzing) your results.
1. Explain Type I and Type II errors. Use an example if needed.
The type I error is rejecting the null **hypothesis** when it is in fact true. The type II error is not rejecting the null **hypothesis** when it is in fact false.
Example: The average weight of a package of rolled oats is supposed to be 20 ounces. Recently customers complained that the weight of a package is different from 20 ounces. To investigate this claim a sample is taken and a **hypothesis** **test** is performed. The null...

4 Pages(1000 words)Assignment

... and the chances are high that they will not attain the mean mark of 50%. Therefore, under such circumstances the null **hypothesis** will be rejected and conclude that the mean mark was less than 50%.
However, Type I error may occur whereby the H0 is rejected while the students had performed to the average mark. Such an idea may be caused by computational errors or using a poor approach (John, 2007). On the other hand, we could accept the H0 and conclude that the mean mark was on average of 50% when on reality the mean mark was less than 50%. Such an aspect allows the tutor to report a false result (John, 2007).
Reference List
John W. (2007). **Hypothesis** **testing**. New York: Wiley.... **Hypothesis** **testing**...

1 Pages(250 words)Essay

...APPLIED PORTFOLIO MANAGEMENT APPLICATION OF THE EFFICIENT MARKET **HYPOTHESIS** This paper attempts to verify the validity of the ment: “Economic theory suggests that markets are efficient and that security prices are determined on the basis of fundamental value.” The National Australia Bank (NAB) has been chosen for the purpose of the study. Data from January 2003 to October 10, 2008 are used for the derivation of daily returns of the NAB stock, with an analysis of the nature and causes of the price changes in terms of information received or accessed by investors. The choice of these inclusive dates was made because the study has to have a distinct, conventional starting point in time, in this case January 1, 2003, and, further, the use...

24 Pages(6000 words)Research Paper

...DNA **Testing** Allen D. Green Anna Hopson English 122 October 5, 2009 The world around us is changing rapidly due to new technologies. Especially in the field of criminal justice we can see how new techniques that once could only have been dreamt up by science fiction writers are now a reality. The techniques, especially DNA **testing**, are now an integral part of efforts to prevent and solve crimes—largely because of their success rate and their level of convenience. This is very important because our police forces and forensic laboratories play a vital front line role in investigating and protecting us from criminals. In many respects, law enforcement professionals can only protect the public in so far as they can properly and effectively make...

8 Pages(2000 words)Term Paper

.... Hence, a researcher is able to explain an observed fact associated with data gathered only by properly analyzing the normal curve and accepting or rejecting the null **hypothesis**. Without a firm grasp of the null **hypothesis**, **hypothesis** **testing** ceases to be the heart of inferential statistics.
2. It is believed that the size of temporary workforces in organisations across the EU is increasing. The EU is interested in whether these increases in temporary workforces vary according to industrial sector. Conduct an analysis to examine the link between SECTOR and TEMPGROWTH; report the findings as fully as you can.
10 marks - max 100 words
The chi-square...

6 Pages(1500 words)Assignment

...A Critique of Efficient Market Hypothesis:When the price of a stock can be influenced by a “herd” on Wall Street with prices set at the margin by themost emotional person, or the greediest person, or the most depressed person, it is hard to argue that the market always prices rational...in fact market prices are frequently nonsensical.”
The Efficient Market **Hypothesis** has been praised by some security analysts as an enduring truth about financial markets. Ever since Eugene Fama coined the theory of the efficient markets in 1970, it has held a prominent position in investment theory. According to him, “in an efficient market any new information would be immediately and fully reflected in equity prices. Consequently, a financial market...

8 Pages(2000 words)Case Study

As early as 1979, the United States government started handling complaints from people that were complaining about their television receivers being interfered with other signals from computers and radio. The arm that was responsible for receiving and processing these complaints was the federal communications commission (FCC). The FCC decided to establish regulations to guide them and system designers in order to curb future EMIs. There are various digital devices that are subject to the codes established by the FCC where a digital device is any unintentional device or system which produces and uses timing pulses in the excess of nine thousand pulses per second. This definition covers anything from a computer and a typewriter to la...

9 Pages(2250 words)Assignment

...Efficient Markets **Hypothesis** Efficient Markets **Hypothesis** Introduction Efficient Market **Hypothesis** (EMH) concept s that prices of financial assets are a reflection of all the relevant information. This implies that prices in average are accurate, which means that financial markets are efficient. The consequences of this are that an active investor is not at a position to continuously beat the market. Consequently, a passive investor may achieve similar profit in average just as the active investor does. This paper will provide a critical analysis of efficient market **hypothesis** within the context of financial meltdown of 2007-2011. The paper will also offer a discussion of behavioral finance theory as an alternative theory and **hypothesis**...

9 Pages(2250 words)Literature review

...Annotated Bibliography for Genetic **testing** of Alzheimer’s Disease Belluck, P. July 16). Footprints to Cognitive Decline and Alzheimer’s Are Seen in Gait. Retrieved July 17, 2012, from The New York Times Web Site: http://www.nytimes.com/2012/07/17/health/research/signs-of-cognitive-decline-and-alzheimers-are-seen-in-gait.html?_r=3&adxnnl=1&src=recg&adxnnlx=1342634614-PDi0KkD/rY+lJLpV5x/5Wg
Several recent studies presented at the Alzheimer’s Association International Conference in Vancouver indicated that changes in the way a person walks -decreased speed and decreased control are closely linked to severe decreases in cognitive control. These changes can indicate that affected individuals are very likely to develop Alzheimer’s disease...

6 Pages(1500 words)Annotated Bibliography

...Bei Wu Jensen Valerie English 101 21 Feb Scientists and medical researchers have been using animal **testing** in laboratories for a very long time.To ensure many medicines, cosmetics and food additive are safe for humans they are **tested** on non-human animals. Indeed, this practice has been in use from mid to late 1800s. In the early 1920s, the phenomenon of using live non-human animals to study the potential effects of toxics in an array of drugs came into use. The assumption is that the effects of such products on the animal used in the experiment are similar to that they would have on humans. Since the Roman Church had burned dissecting of human beings, researchers opted to go the animal way as they provided the best alternatives to human...

7 Pages(1750 words)Research Paper

...What is my position on drug **testing** welfare recipients to receive their benefits? To Pee or not to Pee, That is the Question? My position on whetherwelfare recipients should be drug **tested** to receive their benefits is that I am for drug **testing** under the right circumstances but with the given evidence, it is just not financially responsible to do so. I came to this conclusion during my research by reading reports in journals, case studies, online articles, and a face to face interview with Dr. Rhodes, a biology professor with J. Sargent Reynolds community college. The reason I find this research important is that I see this topic discussed in the news, classroom, social media sites, and even in everyday conversation. Also this topic...

7 Pages(1750 words)Research Paper

...Annotated Bibliography s Prenatal **testing** to detect genetic anomalies has become part and parcel of pregnancy care in most developed nations. While many believe that these **tests** are a great advancement in both science and medicine, others believe that this is another form of Eugenics. First of all, this practice takes away the right to life. The message being passed across is that it is far much better not to exist than to have any form of disability. It is also a form of abortion. Taking away innocent human life is murder and should not be tolerated. Furthermore, this practice marginalizes people with disabilities. It makes them feel worthless and less human beings. There are also many risks that mothers face when undergoing these **tests**...

6 Pages(1500 words)Annotated Bibliography