This document contains information about a study that examined the relationship between national origin (Denmark vs France) and attitudes (trusting vs suspicious). The key points are: - 75% of Danes surveyed were trusting compared to 31% of French - Approximately 25% of Danes were suspicious compared to 69% of French - The study uses a chi-square test to analyze the relationship between these variables, with the null hypothesis being that attitudes and national origin are independent of each other.

1. Sounds like fee.

2. 
ad  bc
a  b c  d a  c b  d 

3.  Significance
testing:
 Use chi-square table
› N = number of participants
› df = 1 (always)

4. Country
Denmark
Total
36b
(31%)
21c
79d
(25%)
Suspicious
64a
(75%)
Attitudes of
People
Trusting
France
(69%)
85 (100%)
115(100%)

5. • 75%
percent of Danish
sampled(64/85*100) were trusting,
whereas 31 % of French sampled
(36/115*100) were trusting.
• Approximately
25% (21/85*100) of Danish
were suspicious, whereas 69%
(79/115*100) of French were suspicious.

6. HO (φ) =0
 HA (φ) ≠ 0

In plain English, null hypothesis means
attitude of people and national origin
are independent of one another, they
don’t influence each other.
 Alternative hypothesis- attitude of
people and national origin are
dependent on one another, they do, in
fact, influence each other.


7. 

Significance testing:
Use chi-square table
› N = number of participants
› df = 1 (always) for 2X2 table
› Why?? (r-1) (c-1) where r=rows and c= columns.
In 2X2 table there are 2 rows and 2 columns;
› (2-1) (2-1)=1X1=1
› For .05 level of significance and 1 df, critical
value =3.84;
› For .01 level of significance and 1 df, critical
value =6.63;
› If Chi obtained is greater than critical value, we
reject null hypothesis of independence between
the variables.

8. Training
Stimulus
Food as Reward
Affection as Reward
28a
48b
(74%)
(30%)
10c
114d
Could They Dance
After Stimulus
Presented?
Yes
No
(26%)
Total
38 (100%)
(70%)
162 (100%)

9. Test the significance of correlation
between sex and opinion on capital
punishment at 0.05 level of significance.
Use the table given below.
Sex
Female
Opinion
Male
total
For
15
9
24
Against
10
17
27
Total
25
26
51

10. Test statistics for testing the significance of
phi coefficient is given by:
z = r n