|
|
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 p-value? |
|
|
|
16 alt |
0.98 |
|
|
|
|