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