# Complete 2 very short assignmentd for Pysch Statistics Course NO PLAGIARISM

NO PLAGIARISM AT ALL….NF MUS SHOW ALL WORK…SEPARATE EACH ASSIGNMENTAssignment #9 Hypothesis Testing 9.1 Briefly explain in your own words the advantage of using an alpha level (a) = .01 versus an a = .05. In general, what is the disadvantage of using a smaller alpha level? 9.2 Discuss in your own words the errors that can be made in hypothesis testing. a. What is a type I error? Why might it occur? b. What is a type II error? How does it happen?9.3 The term error is used in two different ways in the context of a hypothesis test. First, there is the concept of standard error (i.e. average sampling error), and second, there is the concept of a Type I error. a. What factor can a researcher control that will reduce the risk of a Type I error? b. What factor can a researcher control that will reduce the standard error?Assignment #10 The z-test 10.1 Assume that a treatment does have an effect and that the treatment effect is being evaluated with a z hypothesis test. If all factors are held constant, how is the outcome of the hypothesis test influenced by sample size? To answer this question, do the following two tests and compare the results. For both tests, a sample is selected from a normal population distribution with a mean of µ = 60 and a standard deviation of s = 10. After the treatment is administered to the individuals in the sample, the sample mean if found to be M = 65. In each case, use a two-tailed test with ? = .05. a. For the first test, assume that the sample consists of n = 4 individuals. b. For the second test, assume that the sample consists of n = 25 individuals. c. Explain in your own words how the outcome of the hypothesis test is influenced by the sample size.Note: Be sure and show a picture of the research design. Also show all steps and calculations you made for each test following the process outlined in the z-test formula sheet handout. What statistical decision do you make in each case? 10.2 Researchers have often noted increases in violent crimes when it is very hot. In fact, Reifman, Larrick, and Fein (1991) noted that this relationship even extends to baseball. That is, there is a much greater chance of a batter being hit by a pitch when the temperature increases. Consider the following hypothetical data. Suppose that over the past 30 years, during any given week of the major league season, an average of µ = 12 players are hit by wild pitches. Assume the distribution is nearly normal with s = 3. For a sample of n = 4 weeks in which the daily temperature was extremely hot, the weekly average of hit-by-pitch players was M = 15.5. Are players more likely to get hit by pitches during the hot weeks? Set alpha to .05 for a one-tailed test.

Don't use plagiarized sources. Get Your Custom Essay on
Complete 2 very short assignmentd for Pysch Statistics Course NO PLAGIARISM
Just from \$13/Page
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

## Calculate the price of your order

Total price:
\$0.00

How it works?

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

## Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.