

MS 150 Statistics Quiz 12 Fall 2004 



1 
B 
1. Grades: A, B, C, D, F 
A. Nominal 


2 
A 
2. Favorite soy sauce: Angostura, Kikkoman, Sanbushi, Yamasa 
B. Ordinal 


3 
C 
3. Year: 1981, 1987, 1999, 2002 
C. Interval 


4 
D 
4. Soy sauce bottle volumes: 500ml, 1000ml, 1800ml 
D. Ratio 



Store 
Brand 
Price 



Nakasone 
Sanbushi 
2.6 



Wall Mart 
Kikkoman 
3.27 



Yoshie 
Kikkoman 
3.45 



Palm Terrace 
Kikkoman 
3.69 



Ambros 
Kikkoman 
3.85 



Best Buy 
Kikkoman 
3.89 



Josaiah 
Kikkoman 
3.9 



Ace Commercial 
Yamasa 
3.95 



Nakasone 
Kikkoman 
3.97 



4TY 
Yamasa 
4.25 



Panuelo 
Yamasa 
4.75 



En's Seven Star 
Yamasa 
4.95 


5 
12 
What is the sample size n? 



6 
2.6 
What is the minimum value in this data set? 



7 
4.95 
What is the maximum value in this data set? 



8 
2.35 
What is the range for this data? 



9 
0.47 
Divide the data into five bins. What is the width of a single bin? 



10 
Bins 
Frequency 
RF 



3.07 
1 
0.08 



3.54 
2 
0.17 



4.01 
6 
0.50 



4.48 
1 
0.08 



4.95 
2 
0.17 



Sum: 
12 
1.00 


11 
8/60 minutes 
2.51 
≤ µ ≤ 
2.67 
8 seconds is 0.13 minutes. 
11 alt 
8 seconds raw 
2.03 
≤ µ ≤ 
7.21 

12 
No 
On 28 December 2002 I ran an average lap time of 2.65 minutes. 



13 
No 
Statistically speaking, can I say I was faster? 



14 
0.05 
What is the level of significance for this test? 



15a 

Reject the null hypothesis 



15b 
[this is correct] 
Fail to reject the null hypothesis 



16 
0.12 
What is the pvalue? 



16 alt 
0.98 



