PSY315 wk4

1)For the situation in Part I, determine:











a)  the null and research hypotheses;











b)  the hypothesis test used (normal curve, single sample t-test, dependent samples t-test, independent samples t-test, ANOVA). For situations 1, 3, 4, and 5,

state whether the test is one-tailed or two-tailed;










c)  the degrees of freedom, if used.












d)  the critical value (cutoff score on the sampling or "comparison" distribution);








e)  your sample’s test score (this is already provided by each of the situations, but you must include it with your responses);



f)   your conclusion on whether to accept or reject the null hypothesis (you must show how the comparison of your cutoff score with your sample’s test score


leads to your conclusion).


Part I














Situation 1:














A researcher wants to determine whether alcohol decreases viso-spatial ability. She selects two samples of 25 participants each. One group receives 5 ounces of alcohol,
while the other group receives 5 ounces of water. She then measures viso-spacial ability using a test developed for this purpose. The test statistic was 2.81.




















2)From your work or everyday life, please share: 1) An example of a situation in which you would use a single sample t-test; 2) an example of a situation in which
 you would use a t-test for dependent means; and 3) an example of a situation in which you would use an independent samples t-test. 


3)When would you use ANOVA at your place of employment or in everyday life?  Why?



password: shiv














AFTER PAYMENT ENTER PASSWORD : "SHIV" TO UNLOCK THE SOLUTION

Comments

Post a Comment

Popular posts from this blog

Part A: Answer each of the following questions. Be sure to show all of your work and calculations.

Part A: Answer each of the following questions. Be sure to show all of your work and calculations. 1. Woody's Cafe's real estate tax of $1,110.85 was due on November 1, 2013. Due to financial problems, Woody was unable to pay his cafe's real estate tax bill until January 15, 2014. The penalty for late payment is 81/ 4% ordinary interest.Answer the following questions: (a) How much is the penalty Woody must pay (b) What did Woody pay on January 15? Round all answers to the nearest cent. 2. Jane's April 1 inventory had a cost of $48,000 and a retail value of $70,000. During April, net purchases cost $210,000 with a retail value of $390,000. Net sales at retail for Jane for April were $280,000. Calculate the cost of ending inventory using the retail inventory method. (Round to the nearest hundredth percent.) 3. Use the below information to calculate the (a) net sales, (b) gross profit, (c) total operating expenses, and (d) net income.Sales returns $700 Rent expense $1,...
Read more

You are given a choice of taking the simple interest on 100,000 invested for 2 years

You are given a choice of taking the simple interest on  100,000 invested for 2 years at a rate of 3% Or the interest on 100,000 invested for 2 years at an interest rate of 3% compounded quarterly.Which investment earns the greater amount ofinterest? Give the difference between the amounts of interest earned by the two investments.The investment with -----------interest earns $________more interest ((Round to the nearest Cent as needed) Karen Gaines invested $10,000 in a money market account with an interest rate of 1.75% compounded semiannually. Six yearslater, Karen withdrew the full amount to put toward the down payment on a new house. How much did Karen withdraw from the account? Karen withdrew $ . (Round to the nearest cent as needed.) Click here to download the Solution
Read more

Foundations of Finance (7th Edition) (Keown,Martin,Petty) Mini Case p 45

Mini Case On the first day of your summer internship, you’ve been assigned to work with the Chief Financial Officer (CFO) of SanBlas Jewels Inc. Not knowing how well trained you are, the CFO has decided to test your understanding of interest rates. Specifically, she asked you to provide a reasonable estimate of the nominal interest rate for a new issue of Aaa-rated bonds to be offered by SanBlas Jewels Inc. The final format that the chief financial officer of SanBlas Jewels has requested is that of equation (2-1) in the text. Your assignment also requires that you consult the data in Table 2-2.Some agreed-upon procedures related to generating estimates for key variables in equation (2-1)follow.a. The current 3-month Treasury bill rate is 2.96 percent, the 30-year Treasury bond rate is 5.43 percent, the 30-year Aaa-rated corporate bond rate is 6.71 percent, and the inflation rate is 2.33 percent.b. The real risk-free rate of interest is the difference between the calculated average y...
Read more