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In scanning electron microscopy photography, a specimen is placed in a vacuum chamber and scanned by an electron beam. Secondary electrons emitted from the specimen are collected by a detector and an image is displayed on a cathode ray tube. This image is photographed. In the past a 4 x 5 in camera has been used. It is thought that a 35-mm camera can obtain the same clarity. This type of camera is faster and more economical than the 4 x 5-in variety. (Based on a report entitled "Adaptation of a Thirty five Millimeter Photographic System for a Scanning Electron Microscope," E. A. Lawton, Biological Photography, volume 50, no. 3, July, 1982, p. 65.)
(a) Photographs of 15 specimens are made using each camera system. These unmarked photographs are judged for clarity by an impartial judge. The judge is asked to select the better of the two photographs from each pair. Let X denote the number selected taken by a 35-mm camera. If there is really no difference in clarity and the judge is randomly selecting photographs, what is the expected value of X?
(b) Would you be surprised if the judge selected 12 or more photographs taken by the 35-mm camera? Explain, based on the probability involved.
(c) If X _. 12, do you think that there is reason to suspect that the judge is not selecting the photographs at random?
b. Force the regression line through the origin. What is the new regression equation? Predict Y when X 10 with this equation.
Analyze whether or not patients undergoing this treatment are illustrating significant change from baseline to 3 months afterward. Report a p-value.
the following problem should be answered in rgenerate 50 normal distributions with mean 15 and standard deviation 3
Assuming the requirements of ANOVA are satisfied, at the .05 level of significance, is there evidence of a significant difference among the mean wait times at the five checkpoints?
A gambler claims that when an ancient coin is tossed, tails comes up too often. As an experiment, the coin is tossed 900 times. It comes up tails on 785
What is the value of pairing and blocking? In practice, how can a design be blocked?
1.researchers are studying the absorption of two drugs into the bloodstream. each drug is to be injected at three
Your dollar bet can win one of two amounts, 0 if we win and $2 if you win. Simulate 50 plays, using Table A, starting at line 125.
the following data represents the time it takes a company to respond to an account inquiry for opening a new account.a.
"Researcher wanted to know whether there is an association between use of certain drug (Reserpine) and breast cancer. Their target population was 2 million.
Question: Please refer to the attachment to answer this question. This question was created from 18 Deterministic Dynamic Programming https://www.coursehero.com/file/9386232/18-Deterministic-Dynamic-Programming/?dqqid=23435
Montreal and ask them if they would be comfortable with a woman asking them out for a date. If the claim made by the study was true, what is the probability that At most 4 men would say no?
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