FACC 300 Lecture Notes - Lecture 1: Microsoft Powerpoint

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byzantiumbat750

30 Nov 2017

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The absence from a class test must be justified by a medical note stating the date and nature of the illness (or symptoms preventing the patient from attending the exam) and signed by a medical doctor. The note must contain the doctor"s name printed in legible characters, as well as a telephone number at which she/he can be reached. A note without this information will not be accepted. The note will be submitted to the engineering student centre for validation. If the absence from a class test is not justified within three lectures days of that exam, a mark of. However, if the absence is justified within the prescribed period, there will be no make-up test and the weight of that examination will be shifted to the final exam. Questions related to the use of the ba ii plus calculator during a test or exam will not be answered.

Related Questions

QUESTION 1What is the purpose of post hoc tests? Under what circumstances are post hoc tests not needed or appropriate?

a. Under what circumstances is ANOVA a more appropriate statistical technique to use than a t test for independent samples? Please provide an example(s) to support your answer. (2 marks)

b. (2 marks)

c. In testing the difference between group means, how are between group and within group variability related to each other? Provide an example to support your answer. (2 marks)

QUESTION 2

a. If a two-factor ANOVA results in a significant main effect for factor A and a significant AxB interaction, explain why you should be cautious in interpreting the effect of factor A. (1 mark)

b. For the following research situations what would be your main effects and interaction effect. If there was a significant interaction effect what would that mean? (please be as clear as possible in your explanation):

A researcher hypothesizes that the effect of alcohol consumption on one’s motor skills depends on the person’s weight (underweight, normal, overweight), but that this may differ for men versus women. (2 marks)
A teacher is interested in seeing how attending class and reading the assigned chapters is related to her students’ performance on tests. She assesses each student in terms of how often they attend class (rarely, sometimes, regularly) and how often they read the assigned chapters (rarely, sometimes, regularly). (2 marks)

QUESTION 3

Ethel is interested in two methods of note-taking strategies and the effect of these strategies on the overall GPAs of college freshmen. She believes that men would benefit most from Method 1, while women would benefit most from Method 2. After obtaining 30 men and 30 women volunteers in freshmen orientation, she randomly assigns 10 men and 10 women to Method 1, 10 men and 10 women to Method 2, and 10 men and 10 women to a control condition. During the first month of the spring semester individuals in the two note-taking method groups receive daily instruction on the particular note-taking method to which they were assigned. The control group receives no note-taking instruction. Fall and spring GPAs for all participants are recorded and a score that is the difference between the spring and fall semester GPAs is calculated.

Below are the results from running a two-way ANOVA. Please answer the following:

What is the dependent variable? (0.5 marks)
What are the independent variables (factors)? (0.5 marks)
What is the research question(s) being addressed? (1 mark)
What does the descriptive statistics (graphical) tell us about the effects under study?

(1 mark)
What assumptions are being tested in the R output? Are these assumptions met? Please

provide statistical evidence. (2 marks)
What effects are being tested in the R output? (1 mark)
What does output from the ANOVA table tell us? (1 mark)
What type of follow-up analyses was conducted and why? Please interpret. (2 marks)

: Men
: Method1

      median
coef.var

0.300

0.469

: Women
: Method1

      median
coef.var

0.150

0.496

: Men
: Method2

      median
coef.var

0.275

0.027

: Women
: Method2

      median
coef.var

0.600

0.629

: Men
: Control

      median
coef.var

0.175

mean 0.335

mean 0.170

mean 0.305

mean 0.640

mean 0.165

mean 0.105

skew.2SE
   0.408

SE.mean CI.mean.0.95

var 0.052

var 0.033

var 0.037

var 0.032

var 0.022

var 0.021

normtest.W
     0.936

std.dev
  0.229

0.682
    skewness

1.076
    skewness

0.630
    skewness

0.072

SE.mean CI.mean.0.95

normtest.p 0.830 -----------------------------------------------------------------------------

skew.2SE
   0.342

kurtosis
  -0.645

kurt.2SE
  -0.242

normtest.W
     0.964

0.058

SE.mean CI.mean.0.95

std.dev
  0.183

normtest.p 0.096 -----------------------------------------------------------------------------

skew.2SE
   0.361

kurtosis
  -1.363

kurt.2SE
  -0.511

normtest.W
     0.869

0.061

SE.mean CI.mean.0.95

std.dev
  0.192

normtest.p 0.857 -----------------------------------------------------------------------------

0.278
    skewness

0.904
    skewness

skew.2SE
  -0.124

kurtosis
  -1.096

kurt.2SE
  -0.411

normtest.W
     0.979

-0.171

: Women
: Control

      median
coef.var

0.100

1.392
    skewness

0.560

0.046

kurtosis
  -0.759

0.105

kurt.2SE
  -0.284

   std.dev
     0.146

normtest.p
     0.512

skew.2SE
   0.019

kurtosis
  -1.443

kurt.2SE
  -0.541

normtest.W
     0.967

skew.2SE
   0.458

kurtosis
  -0.770

kurt.2SE
  -0.289

normtest.W
     0.906

0.056

SE.mean CI.mean.0.95

std.dev
  0.178

normtest.p 0.254 -----------------------------------------------------------------------------

                                                                      std.dev
                                                                        0.149

normtest.p 0.958 -----------------------------------------------------------------------------

0.047

SE.mean CI.mean.0.95

0.164

0.131

0.137

0.127

0.107

> leveneTest(gpa$gpaimpr~gpa$gender, data=gpa,center=mean)

Levene's Test for Homogeneity of Variance (center = mean) Df F value Pr(>F)

group 1 7.09 0.01* 58

---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 > leveneTest(gpa$gpaimpr~method, data=gpa,center=mean) Levene's Test for Homogeneity of Variance (center = mean)

      Df F value Pr(>F)
group  2    1.94   0.15

> #running Levene's test for assumption of HOV (INTERACTION EFFECT)
> leveneTest(gpa$gpaimpr, interaction(gpa$gender,gpa$method),center=mean) Levene's Test for Homogeneity of Variance (center = mean)

      Df F value Pr(>F)
group  5    0.57   0.72

Df Sum Sq Mean Sq F value Pr(>F) gender 1 0.020 0.020 0.61 0.43753

method 2 1.174 0.587 17.81 1.1e-06 *** gender:method 2 0.695 0.348 10.54 0.00014 *** Residuals 54 1.780 0.033
---

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

gender        0.0055
method        0.3200
gender:method 0.1894

0.011
0.397
0.281

eta.sq eta.sq.part

#selecting only Method1, run ANOVA, then follow-up tests

  Tukey multiple comparisons of means
    95% family-wise confidence level

Fit: aov(formula = gpaimpr ~ gender, data = gpaMethod1)
$`gender`
Women-Men -0.165 -0.3594851  0.02948506    0.0915581

diff        lwr        upr     p adj

#selecting only Method2, run ANOVA, then follow-up tests

  Tukey multiple comparisons of means
    95% family-wise confidence level

Fit: aov(formula = gpaimpr ~ gender, data = gpaMethod2)
$`gender`
Women-Men 0.335 0.161153 0.508847   0.000754

diff      lwr      upr    p adj

aquamarineox434

The City of Pfeiffer starts the year of 2015 with the General Fund and an enterprise fund. The General Fund has two activities: education and parks/recreation. For convenience, assume that the General Fund holds $123,000 cash and a new school building costing $1 million. The city utilizes straight-line depreciation. The building has a 20-year life and no salvage value. The enterprise fund has $62,000 cash and a new $600,000 civic auditorium with a 30-year life and no salvage value. The enterprise fund monitors just one activity, the rental of the civic auditorium for entertainment and other cultural affairs.

The following transactions for the city take place during 2015. Assume that the cityâs fiscal year ends on December 31.

a.	Decides to build a municipal park and transfers $70,000 into a capital projects fund and immediately expends $20,000 for a piece of land. The creation of this fund and this transfer were made by the highest level of government authority.
b.	Borrows $110,000 cash on a long-term bond for use in creating the new municipal park.
c.	Assesses property taxes on the first day of the year. The assessment, which is immediately enforceable, totals $600,000. Of this amount, $510,000 will be collected during 2015 and another $50,000 is expected in the first month of 2016. The remainder is expected about halfway through 2016.
d.	Constructs a building in the park in (b) for $80,000 cash so that local citizens can play basketball and other sports. It is put into service on July 1 and should last 10 years with no salvage value.
e.	Builds a sidewalk around the new park for $10,000 cash and puts it into service on July 1. It should last for 10 years, but the city plans to keep it up to a predetermined quality level so that it will last almost indefinitely.
f.	Opens the park and charges an entrance fee of only a token amount so that it records the park, therefore, in the General Fund. Collections during this first year total $8,000.
g.	Buys a new parking deck for $200,000, paying $20,000 cash and signing a long-term note for the rest. The parking deck, which is to go into operation on July 1, is across the street from the civic auditorium and is considered part of that activity. It has a 20-year life and no salvage value.
h.	Receives a $100,000 cash grant for the city school system that must be spent for school lunches for the poor. Appropriate spending of these funds is viewed as an eligibility requirement of this grant. During the current year, $37,000 of the amount received was properly spent.
i.	Charges students in the school system a total fee of $6,000 for books and the like. Of this amount, 90 percent is collected during 2015 with the remainder expected to be collected in the first few weeks of 2016.
j.	Buys school supplies for $22,000 cash and uses $17,000 of them. The General Fund uses the purchases method.
k.	Receives a painting by a local artist to be displayed in the local school. It qualifies as a work of art, and officials have chosen not to capitalize it. The painting has a value of $80,000. It is viewed as inexhaustible.
l.	Transfers $20,000 cash from the General Fund to the Enterprise Fund as a capital contribution.
m.	Orders a school bus for $99,000.
n.	Receives the school bus and pays an actual cost of $102,000. The bus is put into operation on October 1 and should last for five years with no salvage value.
o.	Pays salaries of $240,000 to school teachers. In addition, owes and will pay $30,000 during the first two weeks of 2016. Vacations worth $23,000 have also been earned but will not be taken until July 2016.
p.	Pays salaries of $42,000 to city auditorium workers. In addition, owes and will pay $3,000 in the first two weeks of 2016. Vacations worth $5,000 have also been earned but will not be taken until July 2016.
q.	Charges customers $130,000 for the rental of the civic auditorium. Of this balance, collected $110,000 in cash and will collect the remainder in April 2016.
r.	Pays $9,000 maintenance charges for the building and sidewalk in (d) and (e).
s.	Pays $14,000 on the bond in (b) on the last day of 2015: $5,000 principal and $9,000 interest.
t.	Accrues interest of $13,000 on the note in (g) as of the end of 2015, an amount that it will pay in June 2016.
u.	Assumes that a museum that operates within the city is a component unit that will be discretely presented. The museum reports to city officials that it had $42,000 of direct expenses this past year and $50,000 in revenues from admission charges. The only assets that it had at year-end were cash of $24,000, building (net of depreciation) of $300,000, and a long-term liability of $210,000.

Prepare the 2015 fund financial statements for the governmental funds and the proprietary funds. A statement of cash flows is not required. Assume that âavailableâ is defined as within 60 days and that all funds are major. The General Fund is used for debt repayment. Assume that major funds are labeled as âSpecial Revenue Fundâ and âCapital Projects Fundâ. (Amounts to be deducted should be indicated by a minus sign.)

roseelk840

FACC 300 Lecture Notes - Lecture 1: Microsoft Powerpoint

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