+1-415-315-9853

info@mywordsolution.com

## Statistics

Data Set A: problems 1-3.
SAT            GPA            SES
SAT    Pearson Correlation                     1             0.778         0.232
Sig. (2-tailed)                                     .             0.002           0.71
N                                                   45200        145200       145200
GPA    Pearson Correlation                   0.778           1              0.424
Sig. (2-tailed)                                  0.002            .               0.081
N                                                    145200     145200        145200
SES    Pearson Correlation                   0.232        0.424                1
Sig. (2-tailed)                                  0.71           0.081                .
N                                                 145200        145200          145200

1.    What is r xy  if  SAT = x and GPA = y ?

a.    0.778
b.    0.232
c.    0.002
d.    0.71

2.    Which of the following correlations is significant (p < .05)?

a.    SAT and GPA
b.    GPA and SES
c.    SAT and SES
d.    All the above

3.    What is the variance accounted for in SAT due to GPA?

a.    40%
b.    60.5%
c.    5.4%
d.    Less than 1%

Research Design A: problems 4-8

A researcher was interested in the effects of sexual arousal on the ability to concentrate, and also wondered whether gender and age are important factors. The researcher had participants read passages that were low, medium, or high in sexual arousal content. The participants included both males and females and were divided into three age categories (18-24, 25-35, and 36-50 years). After reading the passage, concentration was measured by a proofreading task; the researcher measured the number of errors detected on the task.

4.    What type of statistical procedure should the researcher use to answer her problems?

a.    Standard Deviation
b.    Independent Sample t test
c.    Correlation
d.    Factorial Anova

5.    Which of the following are the Independent Variables:

a.    Gender, Sexual Arousal, Age
b.    Gender, Age, Concentration
c.    Sexual Arousal, Age, Concentration
d.    Sexual Arousal, Concentration, Gender

6.    Which of the following is the Dependent Variable

a.    Sexual Arousal
b.    Gender
c.    Concentration
d.    Age

7.    Which of the following represents  the design?

a.    3 x 3 x 2
b.    3 x 3
c.    2 x 3
d.    2 x 3 x 1

8.    Which of the following represents a possible interaction?

a.    Gender affects concentration
b.    Sexual arousal affects concentration
c.    Sexual arousal affects concentration but only for males
d.    Only high levels of sexual arousal affects concentration

Data Set 2: problems 9-10

The commissioner of the National Hockey League wants to know if offense (Goals_F), defense (Goals_A) and penalties (Pen_Min) predict winning (Tier).
Model Summary

Model    R         R Square    Adjusted R Square    Std. Error of the Estimate
1     .581(a)       .338                  .314                             .966
2    .728(b)        .531                  .496                             .828
3    .734(c)        .538                  .485                              .837

a  Predictors: (Constant), Goals_F
b  Predictors: (Constant), Goals_F, Goals_A
c  Predictors: (Constant), Goals_F, Goals_A, Pen_Min

ANOVA(d)

Model                            Sum of Squares    df     Mean Square       F             Sig.
1    Regression                  13.336             1      13.336               14.290    .001(a)
Residual                          26.131          28     .933
Total                               39.467           29
2    Regression                    20.945           2      10.473               15.267     .000(b)
Residual                         18.521           27     .686
Total                               39.467           29
3    Regression                    21.245            3      7.082                 10.104     .000(c)
Residual                         18.222             26    .701
Total                              39.467             29

a  Predictors: (Constant), Goals_F
b  Predictors: (Constant), Goals_F, Goals_A
c  Predictors: (Constant), Goals_F, Goals_A, Pen_Min
d  Dependent Variable: Tier

9.    If he wants to describe the maximum variability (Adjusted R squared) in winning then which one should he select?

a.    Model 1
b.    Model 2
c.    Model 3

10.    How much variability in winning is NOT describeed by the best model (coefficient of alienation converted to a percentage)?

a.    31.4 %
b.    49.6%
c.    68.6%
d.    50.4%

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M91452

Have any Question?

## Related Questions in Statistics and Probability

### Lucerne earns a gross income of 5500 per month and applies

Lucerne earns a gross income of \$5,500 per month and applies for a mortgage with a monthly PITI of \$1,244. Lucerne has other financial obligations totaling \$829 per month. (Use the ratio guidelines from your text) What t ...

### Discuss the changes in beliefs from the end of the

Discuss the changes in beliefs from the end of the pre-modern period into the modern period, providing two (2) examples. Discuss how these changes have impacted current practice in psychology, providing two (2) examples.

### Corrections for phase 4in confidence interval calculations

CORRECTIONS FOR PHASE 4 In confidence interval calculations, sqrt(364) goes in the bottom for E; this has thrown off your intervals - too narrow; t should be negative in the hypothesis test, but your conclusion is correc ...

### Question -after collecting the data a forecaster plans on

Question - After collecting the data, a forecaster plans on initially estimating the following model y = β 0 + i=1 ∑ 8 β i X i + β 9 (X 5 *X 7 ) +e, then dropping all of the X variables that are not significant at the 0. ...

### Consider the extensive-form game and the scenario shown in

Consider the extensive-form game and the scenario shown in given Figure. a. Compute belief probabilities that are consistent with this scenario. b. For each player, at each of his information states, compute the sequenti ...

### Two sets of chromium analyses were performed on water

Two sets of chromium analyses were performed on water samples from a stream that runs near a chromium plating plant:                  Before the spill                                After the spill Mean :           0.95 ...

### In the following cross-lagged panel design does x appear to

In the following cross-lagged panel design, does X appear to cause Y, does Y appear to cause X, do both variables influence each other, or are X and Y unrelated?

### Objectivenbspstudents will assume the identity of a person

Objective:  Students will assume the identity of a person living in the north or south during the Civil War and provide a personal experience in the form of a letter. Most of what we know of history prior to technologica ...

### A researcher conducted an experiment to examine the effects

A researcher conducted an experiment to examine the effects of distracting noise on people's ability to solve anagrams (scrambled letters that can be unscrambled to make words). Participants worked on anagrams for 10 ...

### Packages of sugar bags for sweeter sugar inc have an

Packages of sugar bags for Sweeter Sugar Inc. have an average weight of 10 ounces and a standard deviation of 0.2 ounces. The weights of the sugar bags are normally distributed. What is the probability that 16 randomly s ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro