Lora Anderson
Last summer, an insurance company researcher conducted a
survey on the number of car thefts in a large city for a period of
30 days. The stem and leaf display shows the numbers of car
thefts for the 30 days.
(Please note that there should be
Lora Anderson
Introduction: The variables that have been planned on being studied are, how many
hours a week do you watch television? And how many show do you watch? As many
Americans consume watching television daily, asking a group of working consumers
Lora Anderson
Introduction: The variables that have been planned on being studied are, how many
hours a week do you watch television? And how many show do you watch? As many
Americans consume watching television daily, asking a group of working consumers
Lora Anderson
Here are the weekly payrolls for two imaginary restaurants:
Mooseburgers and McTofu. Do the following:
1) Draw parallel modified boxplots (by hand)
2) What are the fences?
3) Write a few sentences comparing the distributions
4) Where would y
Lora Anderson
Researchers continue to look for methods to estimate how fast a
car was traveling before an accident. Most methods focus on the
distance to completely stop a car at various speeds. Consider the
following data.
MP
Braking distance in feet
H
2
You are taking a multiple choice quiz which consists of 6
questions. Each question has five possible answers to choose
from of which only one is correct. Answer the following questions.
1. (0.25 points) What is your chance of choosing the correct
answer f
Lora Anderson
Consider the following distribution of blood types in the U.S.
Blood
perce
type
nt
A
40
B
11
O
45
AB
4
1. (0.10 point) What percent of the U.S. population have type
AB?
4%
2. (0.10 point) What percent of the U.S. population does not have
Typ
Lora Anderson
Please answer all questions. You must show your work and use
complete sentences for credit. If you used your calculator,
indicate what function you used and what your input values were.
1. (0.25 point) An HCC student received a score of 75 o
Lora Anderson
1. In a stat class, there are 18 juniors and 10 seniors; 6 of
the seniors are females and, 12 of the juniors are males.
a. (0.25 point) Complete the following contingency table for this
scenario.
Mal Fema Tot
e
le
al
Juni
12 6
18
or
Seni
4 6
1. When running a linear regression to find out the impact of feelsafe (safety)
on visitfre (visit frequently) the variables entered in the analysis can be
classified as:
a. visifre as Independent Variable and feelsafe as Dependent Variable
b. visifre as
1. Differences analysis involves the following type(s) of tests?
a. One sample t-test
b. Paired sample t-test
c. Independent sample t-test
d. ANOVA
*e. All of the above
2. An investigation of the differences between (usually) more than two group
means, fo
1. Of the total (grand total) number of respondents from the cross-tabulation table
for Chi-square Test, what is the percentage of males and females in the spending
range of $-$5 for lunch at a restaurant, respectively?
a. 28.3% and 42.5%
b. 48.3% and 5.7
1. In the SPSS Tables Set- for the Regression Analysis, what is the dependent
variable and what is/are the independent variable(s) respectively:
*a. visitfre and prices
b. price and visitfre
c. visitfre and location
d. location and prices
2. In the SPSS T
1. How would you define the best fit line in scatter plot of regression analysis?
*a. An imaginary line drawn in such a way that the total variance of distance for each
data point from this line is minimized.
b. An imaginary line drawn in such a way that
1. Before determining if gender is associated with spending amount for lunch in a
restaurant, we should first identify
*a. Number of males and females in each spending category
b. Scaling assumptions
c. The sample mean for spending
d. How often people eat
1. What type of test is reported in the above SPSS Tables Set-1?
a. one-sample t test
b. paired sample t test
*c. independent sample t test
d. dependent sample t test
e. unpaired sample t test
2. What are the respective sample means on feelsafe (Importanc
1. For the question where the sample size (n) was 895, the average number of miles
driven by WSU students was 12,000 (x) and the standard deviation was 3000 miles (s)
you estimated the interval of miles within which 95% of the drivers fall. Does a
hypothe
1. What type of error is committed when the null hypothesis is rejected when it is true?
*a. Type I
b. Type II
c. Type III
d. Type IV
e. None of the above
2. What % of male respondents drink imported beer?
a. 75.50%
*b. 83.33%
c. 60.33%
d. 33.35%
e. None
1. When running linear regression to find out the impact of feelsafe (safety),
beconvie (be convenient), and gowatch (go watch) ALL TOGETHER on
visitfre (visit frequently), how much of the total variance in visitfre is
explained by the THREE IVs, taken to
1. If the typical response rate for a telephone interview is 15% and the number of
potential respondents is 2000, the final sample would have
a. 150 respondents
b. 200 respondents
c. 100 respondents
*d. 300 respondents
e. 15 respondents
2. For a city with
P-Value
Assuming that H0 is true, the probablility that the observed outcome (or a more extreme
outcome) would occur is called the p-value of the test.
Small p-value = strong evidence against H0.
How small does the p-value need to be?
We compare it with a
1. What is the sample size in the data set, as per instructions given for section A in the
HW-3 hand out?
a. 120
b. 240
c. 100
d. 50
e. None of above
2. What is the mean of location, as per instructions given for section A in the HW-3 hand
out?
a. 4.28
b.
Go to Descriptives and then to Crosstabs. Input atmoimpt in rows and gender in
columns. Click on Statistics and then on Chi-square. In addition you go to cells and
select observed, expeted counts and total percentage. Also select display clustered bar
cha
1. What type of test is reported in your SPSS output of the analysis based on
instructions given in Lesson 1 of HW-1 hand out in word document?
a. one-sample t test
b. paired sample t test
c. independent sample t test
d. dependent sample t test
e. unpaire
1. What is the frequency of males and females in the gender data of respondents
respectively?
a. 10 and 0
b. 10 and 5
*c. 5 and 5
d. 0 and 10
e. None of above
2. What is the frequency of yes and no in the support data of respondents?
*a. 8 and 2
b. 2 and
1. Next, the researcher wants to examine if there is a significant difference
between location and prices (see Q2) in choosing to eat at a sports
restaurant. Run the analysis and interpret the results (in a sentence or two) for
the researcher. (Hint: Run
Chapter 12: Marketing
Define marketing
Define utility and differentiate the 4 forms of it
Differentiate B2C and B2B markets
Define the term target market
Understand market segmentation and the various ways to segment
Define the marketing mix and identify
1. What type of test is reported in your SPSS output of the analysis based on
instructions given in Lesson 1 of HW-1 hand out in word document?
a. one-sample t test
b. paired sample t test
c. independent sample t test
d. dependent sample t test
e. unpaire
Your job is to help the researcher identify if there is an association between the
respondents gender and whether one feels atmosphere is important when deciding to
visit a sports restaurant (Q7 variable name: atmoimpt). Run the analysis and
interpret the
Significance Test & Hypothesis
Significance test: a formal procedure for comparing observed data with a hypothesis whose
truth we want to assess.
Hypothesis: a statement about a population parameter.
Null (Ho) and Alternative (Ha) Hypotheses
The null hypo