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In 1995, the Fermi Laboratory announced the discovery of the top quark, the last of six quarks predicted by the "standard model of physics." The evidence for its existence was statistical in nature and involved signals created when antiprotons and protons were forced to collide.
In a Physical Review Letters paper documenting the evidence, Abe, Akimoto, and Akopian (known in physics circle as the three A's) based their conclusion on a theoretical analysis that indicated that the number of decay events in a certain time interval would have a Poisson distribution with a mean equal to 6.7 if a top quark did not exist and with a larger mean if it did exist. In a careful analysis of the data the three A's showed that the actual count was 27.
Is this strong enough evidence to prove the hypothesis that the mean of the Poisson distribution was greater than 6.7?
What percentage of the variation in their scores on the second round can be explained by their scores on the first round?
when an experiment design has two factors but one factor involves related samples while the other factor involves
Suppose the inspector is unhappy with the previous result and would like to resample. How many rolls should be sampled to estimate the mean tensile strength within 1.5 PSI with 95% confidence?
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
the u.s. census bureau annual social amp economic supplement collects demographics concerning the number of people in
bob wishes to insure a priceless family heirloom against theft. the annual premium for policy a is 150 and it will pay
in a random sample of males 23 write with their left hand and 217 do not. 65 females write with their left hand and 455
Do women talk more than men? Equip male and female students with a small device that secretly records sound for arandom 30 seconds during each 12.5 minute interval for two days.
a man finds that two things cause him to wake up at night- his cat or his dog. if it is due to his cat the time to fall
Estimate the probability that it is private insurance
If the null hypothesis is rejected, can you state that the mean score of those with a rural background is different from the score of those with a large-city background?
A study describes operating costs for comparable manufacturing plants operating in 15 different U.S. metropolitan areas. From the costs obtained in the study, the following multiple regression equation was developed:
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