Contact Us
Sign In / Sign Up for FREE
Go to advanced search...

Stats16 - Essay Example

Comments (0) Cite this document
Part 1 – multiple choice  Question 1   In general, the null hypothesis states that the treatment has no effect on the population mean. Answer True False  Question 2   In a research report, the term statistically significant is used to indicate that the null hypothesis was rejected…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER95.2% of users find it useful
Read Text Preview

Extract of sample "Stats16"

Download file to see previous pages Answer True False  Question 5   If other factors are held constant, then increasing the sample standard deviation will increase the likelihood of rejecting the null hypothesis. Answer True False  Question 6   If all other factors are held constant, increasing the sample size from n = 25 to n = 100 will increase the power of a statistical test. Answer True False  Question 7   By selecting a smaller alpha level, a researcher is ___. Answer a. attempting to make it easier to reject H 0 b. better able to detect a treatment effect c. reducing the risk of a Type I error d. All of the above.  Question 8   The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = -1.90, then what is the correct statistical decision? Answer a. Fail to reject H 1. b. Fail to reject H 0. c. Reject H 1. d. Reject H 0.  Question 9   Increasing the alpha level (for example, from ? = .01 to ? = .05) ____. Answer a. increases the probability of a Type I error b. increases the size of the critical region c. increases the probability that the sample will fall into the critical region d. All of the above   Question 10   In a hypothesis test, an extreme z-score value, like z = +3 or z = +4, ____. Answer a. is probably in the critical region b. means that you should probably reject the null hypothesis c. ...
concluded that a treatment has no effect when it really does d. concluded that a treatment has an effect when it really has no effect  Question 12   A Type I error means that a researcher has ____. Answer a. concluded that a treatment has an effect when it really does b. concluded that a treatment has no effect when it really has no effect c. concluded that a treatment has no effect when it really does d. concluded that a treatment has an effect when it really has no effect  Question 13   A researcher risks a Type I error ____. Answer a. anytime H 0 is rejected b. anytime H 1 is rejected c. anytime the decision is "fail to reject H 0" d. All of the other options are correct.   Question 14   A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = ?2.60. Assuming that the researcher is using a two-tailed test, what is the correct statistical decision? Answer a. Reject the null hypothesis with ? = .05 but not with ? = .01. b. Reject the null hypothesis with either ? = .05 or ? = .01. c. Fail to reject the null hypothesis with either ? = .05 or ? = .01. d. cannot answer without additional information  Question 15   A researcher uses a hypothesis test to evaluate H 0 ? = 80. Which combination of factors is most likely to result in rejecting the null hypothesis? Answer a. M = 85 and ? = 10 b. M = 85 and ? = 20 c. M = 90 and ? = 10 d. M = 90 and ? = 20  Question 16   A researcher uses a hypothesis test to evaluate H 0 ? = 80. Which combination of factors is most likely to result in rejecting the null hypothesis? Answer a. M = 85 and n = 10 b. M = 85 and n = 20 c. M = 90 and n = 10 d. M = 90 and n = 20  Question 17   A researcher uses a hypothesis test to evaluate H 0 ?= 80. Which ...Download file to see next pages Read More
Cite this document
  • APA
  • MLA
(“Stats16 Essay Example | Topics and Well Written Essays - 1250 words”, n.d.)
Retrieved from
(Stats16 Essay Example | Topics and Well Written Essays - 1250 Words)
“Stats16 Essay Example | Topics and Well Written Essays - 1250 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document


Can the Cognitive Approach Be Used to Conquer Fear

...Can the Cognitive/Behavioural Approach be used to conquer fear? Anxiety can be a difficult emotion to overcome, especially when it arises at inopportune times seemingly over unreasonable issues, such as when one is driving across a high bridge. This fear can sometimes prove quite limiting, as when one is too afraid to cross such a bridge as the only way to reach a destination. To overcome such a fear, a cognitive/behavioural approach was adopted as an attempt to resolve this anxiety for one test subject and remove or reduce the restrictions on movement it imposed. Interaction consisted of the instruction of breathing and other panic control techniques, a progressive series of homework assignments in which the patient crossed... the...
13 Pages (3250 words) Assignment

European Law

...European Law “(T)he European Court (of Justice) … has had a great effect upon the powers that we have relinquished. It has by its decisions greatly extended the powers of the centralised institutions against the nation state. Its methods of interpreting the law are totally different from those of our courts and nothing like so exact or so good. The court draws upon the objective of European integration to inform all its rulings by which over a period of time it has therefore furthered decisions towards a unitary European state. The court has also overruled specific legislation. (The Merchant Shipping Act 1988) went overboard because by some strange device the court said that Community law overrode it. That court (the European... Law “(T)he...
12 Pages (3000 words) Assignment

Free Trade and Foreign Direct Investment in Australia, Britain, China

...China’s demand for iron ore has driven the growth of Rio Tinto. BHP Billiton, Vale and Rio Tinto, control about 70% of the worlds trade in iron ore. Each year they negotiate annual supply contracts with their main customers, and as demand has surged, so has the price. In 2005 the price rose by 72%. Australia benefits the most since it is the worlds biggest exporter of iron ore. The output from Rio Tintos mines in the Pilbara, in north-west Australia, has increased by an average of 15% a year since 1999. Between now and 2013 it plans to triple its output. Demand for goods and services in the Pilbaras state, Western Australia, grew by 11% in 2007. Studies have touted the benefits of foreign direct investment. (China Elections... demand for...
9 Pages (2250 words) Term Paper

Marketing Management: Best Buy

...Society in the 20th century lived through an era that brought new innovations and technologies that produced electronic goods to improve the standardof living of people in their household. Appliances are machines that facilitate housework for family members. The proliferation of the radio and the creation of the television were two inventions that transformed the lives of people due to its entertainment value. Electronic consumer goods became booming industry in the latter half of the 20th century. The broadband era of the 21st century brought to the marketplace numerous electronic devices that serve for multimedia purposes. A store that entered into this industry and evolved into the largest electronic specialty retailer is Best... in the...
11 Pages (2750 words) Assignment

Managing Financial Resources

...ACCOUNTING RATIOS Company A Return on Sales = (Net profit Sales) *100 = (38,000 747,000) *100 = 5.08% Return on Assets = (Net Profit Assets) *100 = (38,000 / 815,000) *100 = 4.66% Current Ratio = Current Assets / Current Liabilities = 252,000 / 160,000 = 1.57 Quick Ratio = (Current Assets – Inventory) / Current Liabilities = (252,000 – 122,000)/ 160,000 = 0.8125 Inventory Turnover = COGS / Inventory = 568,000 / 122,000 = 4.65 times Company B Return on Sales = (Net profit / Sales) *100 = (45,000 / 570,000) *100 = 7.89% Return on Assets = (Net Profit / Assets) *100 = (45,000 / 1,056,000) *100 = 4.26% Current Ratio = Current Assets... RATIOS...
8 Pages (2000 words) Assignment

European Communities Act 1972 and European Sources of Law

...Law Assignment Question Custom/Common law In the past, customs resulted in laws that were applied throughout the country. Common law, was foundedon established customs, practices and case law. These decisions were documented as Law Reports. Legal certainty was ensured by making the decisions of a higher court binding on the lower courts, in cases with similar facts. This constitutes the doctrine of judicial precedent1. Legislation Since the 17th century, legislation has given rise to most of the new laws. Acts of Parliament constitute primary legislation, and they are of greatest significance. These acts become valid, after being approved in both the houses of Parliament, and thereafter receiving Royal Assent2. Government... Assignment...
6 Pages (1500 words) Assignment

Marketing Plan for Private Medical Clinic in Birmingham

...How to start a new business venture: Marketing Plan Table of Contents Introduction 4 2.Background of Scenario 4 3.Situational Analysis 5 3 Marco-environmental Factors 5 3.1.1.Political 5 3.1.2.Economic 5 3.1.3.Socio-cultural 6 3.1.4.Technology 7 3.2.Industry Analysis (Five Forces) 7 3.2.1.Bargaining power of suppliers 8 3.2.2.Bargaining power of consumer 9 3.2.3.Threat from new entrants 11 3.2.4.Threat from substitute 11 3.2.5.Existing rivalry 11 4.Market Segmentation and targeting 11 5.Strategic Directions 12 5.1.1.Ansoff Matrix 12 5.1.2.Porter’s Generic Strategy 13 6.Proposed Marketing Mix for the Venture 14 6.1.1.Product/Service 14 6.1.2.Price 15 6.1.3.Place 15 6.1.4.Promotion 15 6.1.5.People 15 6.1.6... to start a new ...
9 Pages (2250 words) Case Study

Validity of Electronic Contracts from an Islamic Perspective

...Electronic contract There has been a significant change in the manner in which business transactions are executed especially after the introduction and popularity of electronic commerce. Due to the increasing trend of e-commerce special laws governing and regulating electronic contracts have been introduced across the globe. With the spread of such internet based commercial transactions in Islamic countries, there have been various debates contemplating the validity of such contracts in accordance with the Shariah Law (Islamic Law). Since it is obligatory for Muslims to adapt and accommodate Islamic rules in almost all aspects of their lives this principle must be adopted for e-commerce transactions as well. This study aims... contract There...
38 Pages (9500 words) Research Paper

An Evaluation of the Appropriateness of Viral Marketing Strategy for K&K Beverages

...An Evaluation of the Appropriateness of Viral Marketing Strategy for K&K Beverages Viral marketing is defined as any technique that persuades people to communicate the marketing material or message to other people, generating the possibility of exponential increase in the exposure and effect of the message. This project discusses how this kind of marketing is used in K&K export–import as a new channel of distribution. The project concludes that virtually all organisations, even in tradition-oriented marketing companies in the Slovak republic, can employ viral marketing as a productive organisational tool. This project discusses the various components of viral marketing, such as advertising, word-of-mouth, e-communications... Evaluation of...
49 Pages (12250 words) Dissertation

The Use of the Internet and Global Diversity

... Module: Assessment Type: No: Words: 1516 The use of the internet and global diversity Individuals use the Internet for different purposes depending on their work or preference. To some users, the internet is a source of information, and the vast amount of information that it contains is the most important feature. To some, it is a means of communication. Regardless of the type of use by individuals, there is bound to be a level of influence on the different users of the internet. Cultural exchange is one of the possible effects of the use of the internet. As expected, the diversity of the global population is easily shared and learnt by different people from other backgrounds. The level of learning and adoption, however... Module:...
6 Pages (1500 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 Essay on topic Stats16 for FREE!

Contact Us