test1_f04a

test1_f04a - First Exam Fall 2004 ST 370 Online A Darken...

This preview shows pages 1–3. Sign up to view the full content.

First Exam - Fall 2004 - ST 370 Online - A Darken the circle on the answer sheet corresponding to your answer. Use a number 2 pencil. Stray marks on the form may cause errors. All questions are worth 5 points. 1. The following sample was collected: 17, 24, 9, 36, 13. The sample mean is (to 2 decimals) A. 17.00 B. 17.39 C. 18.92 D. 19.80 E. None of the above. 2. The sample range of the problem 1 sample is A. 7 B. 27 C. 24 D. 15 E. None of the above. 3. The sample standard deviation of the problem 1 sample is (to 2 decimals) A. 10.62 B. 12.07 C. 14.19 D. 90.16 E. None of the above. 4. When interaction is present in an experiment with a factorial treatment structure, which of these statements is correct? A. The change in response variable means across levels of one factor depends on the levels of the other factors. B. Interaction is revealed in an mplot by parallel lines. C. Interaction cannot be detected in a blocked experiment. D. The change in response variable means across levels of one factor is uniform. E. All of the above. 5. A 60th percentile is A. The same as the .40 fractile or quantile. B. The point where 40 percent of the population or data lie above it. C. Close to the 3rd quartile. D. Both A. and B. E. None of the above. 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Histogram of x x Density 024681 0 0.00 0.05 0.10 0.15 0.20 (a) Histogram of x x 0 0.0 0.1 0.2 0.3 (b) 6. What can we say about the data in the above two histograms?
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 7

test1_f04a - First Exam Fall 2004 ST 370 Online A Darken...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online