logo Use SA10RAM to get 10%* Discount.
Order Now logo

Ask This Question To Be Solved By Our ExpertsGet A+ Grade Solution Guaranteed

expert
Seth PowellResume writing
(5/5)

958 Answers

Hire Me
expert
Dai AndrewsGeneral article writing
(5/5)

732 Answers

Hire Me
expert
Riya ChopraComputer science
(5/5)

543 Answers

Hire Me
expert
Jyoti PrajapatiStatistics
(/5)

586 Answers

Hire Me
Quantitative Methods
(5/5)

State the null and alternative hypotheses both in words and in symbols define all the symbols you use

INSTRUCTIONS TO CANDIDATES
ANSWER ALL QUESTIONS

Assignment

Note: You will turn in your work independently on this assignment. Conduct all the analyses by SPSS and cut and paste only the relevant outputs adjacent to the texts.

This is a “pick two” so pick two of the following three questions to answer. 

1. The amount of money spent on health care is an important issue for workers because many companies provide health insurance that only partially covers many medical procedures. The director of employee benefits at a midsize company wants to determine the amount spent on health care by the typical hourly worker in the company and she wants to know whether the typical worker spend more than $350 per year on health care needs. A random sample of 25 workers is selected.  The amount they spend on their families’ health care needs during the past year is given here and also provided as a SPSS data set: “Health care cost.sav”. 

400, 345, 248, 590, 398, 418, 197, 342, 328, 397, 531, 172, 521, 431, 254, 495, 642, 219, 276, 326, 354, 225, 183, 365, 428 

Use the “8 Famous Steps” to help you complete the following: 

(a)    State the null and alternative hypotheses both in words and in symbols. Define all the symbols you use (see how I do this in the slides when I show you a formula and then use a “where” followed by description of each). 

(b)   Discuss which test is appropriate in terms of (i) type of test, i.e., z-test or t-test; (ii) type of method, i.e., (a) one-sample, (b) two paired (related) samples, or (c) two independent samples; and (iii) directionality of the test, i.e., one-tailed or two-tailed test. Give the reasons of your choice for each aspect. 

(c)    Conduct the appropriate analysis by SPSS. That is, test the hypothesis at a = .05 level. 

(d)   Check the assumptions that are made for this test. 

a. Normality (create histogram of this sample and think about the shape of the distribution)

b. Independent observations (think about the role of random selection) 

(e)    Make a statistical decision and write a short substantive interpretation of the results of the test. Be sure to include the value of the effect size (i.e., Cohen’s d) and comment on that. 

 2.   Hout, Duncan, and Sobel (1987) reported on the relative sexual satisfaction of married couples. They asked each member of 91 married couples to rate the degree to which they agreed with “Sex is fun for me and my partner” on a four-point scale ranging from “never or occasionally” to “almost always.” They wanted to know whether couples’ sexual satisfaction levels are comparable. The data appear below and also are in Couples sexual satisfaction.sav. 

Husband

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Wife

1

1

1

1

1

1

1

2

2

2

2

2

2

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

1

1

1

1

2

2

2

2

2

2

2

2

2

2

2

Wife

3

4

4

4

1

1

2

2

2

2

2

2

2

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

Wife

3

3

4

4

4

4

4

4

4

1

2

2

2

2

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

3

3

3

3

3

3

3

3

3

3

3

3

1

4

4

Wife

3

3

3

3

4

4

4

4

4

4

4

4

4

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Wife

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Wife

3

3

4

4

4

4

4

4

4

4

4

4

4

4

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Husband

4

 

Wife

4

 

 Use the “8 Famous Steps” to help you complete the following: 

(a)    State the null and alternative hypotheses both in words and in symbols. Define all the symbols you used. 

(b)   Discuss which test is appropriate in terms of (i) type of test, i.e., z-test or t-test, (ii) type of method, i.e., (a) one-sample, (b) two paired (related) samples, or (c) two independent samples, and (iii) directionality of the test, i.e., one-tailed or two-tailed test. Give the reasons of your choice for each aspect.

 (c)    Conduct the appropriate analysis by SPSS. That is, test the hypothesis at a = .05 level. 

(d)   Check the assumptions that are made for this test. 

a. normality (think about two things: sample size and distribution of the differences)

b. independent observations (hmmm…husbands and wives probably talk, so something else) 

(e)    Make a statistical decision and write a short substantive interpretation of the results of the test. Be sure to include the value of the effect size (i.e., Cohen’s d) and comment on that. 

3. The Thematic Apperception Test (TAT) presents subjects with ambiguous pictures and asks then to tell a story about them. These stories can be scored in any number of ways. Werner, Stabenau, and Pollin (1970) asked mothers of 20 Normal and 20 Schizophrenic children to complete TAT and scored for the number of stories (out of 10) that exhibited a positive parent-child relationship. They wanted to know whether the mean TAT score for schizophrenic children is lower than that for normal children. The data are in the following table are also in the TAT.sav: 

Normal

8

4

6

3

1

4

4

6

4

2

Schizophrenic

2

1

1

3

2

7

2

1

3

1

 

 

 

 

 

 

 

 

 

 

 

Normal

2

1

1

4

3

3

2

6

3

4

Schizophrenic

0

2

4

2

3

3

0

1

2

2

 Use the “8 Famous Steps” to help you complete the following: 

(a)    State the null and alternative hypotheses both in words and in symbols. Define all the symbols you used. 

(b)   Discuss which test is appropriate in terms of (i) type of test, i.e., z-test or t-test, (ii) type of method, i.e., (a) one-sample, (b) two paired (related) samples, or (c) two independent samples, and (iii) directionality of the test, i.e., one-tailed or two-tailed test. Give the reasons of your choice for each aspect. 

(c)    Conduct the appropriate analysis by SPSS. That is, test the hypothesis at a = .05 level. 

(d)   Check the assumptions that are made for this test. 

a. normality

b. homogeneity of variance (hint: Levene’s test)

c. independence 

(e)    Make a statistical decision and write a short substantive interpretation of the results of the test. Be sure to include the value of the effect size (i.e., Cohen’s d) and comment on that.

 (f)    BONUS QUESTION: In this problem, a significant difference might lead someone to suggest that poor parent-child relationships are the cause of schizophrenia. What might this be a troublesome conclusion? Discuss it from perspectives of research design and internal validity.

 

(5/5)
Attachments:

Related Questions

. The fundamental operations of create, read, update, and delete (CRUD) in either Python or Java

CS 340 Milestone One Guidelines and Rubric  Overview: For this assignment, you will implement the fundamental operations of create, read, update,

. Develop a program to emulate a purchase transaction at a retail store. This  program will have two classes, a LineItem class and a Transaction class

Retail Transaction Programming Project  Project Requirements:  Develop a program to emulate a purchase transaction at a retail store. This

. The following program contains five errors. Identify the errors and fix them

7COM1028   Secure Systems Programming   Referral Coursework: Secure

. Accepts the following from a user: Item Name Item Quantity Item Price Allows the user to create a file to store the sales receipt contents

Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip

. The final project will encompass developing a web service using a software stack and implementing an industry-standard interface. Regardless of whether you choose to pursue application development goals as a pure developer or as a software engineer

CS 340 Final Project Guidelines and Rubric  Overview The final project will encompass developing a web service using a software stack and impleme

Get Free Quote!

424 Experts Online