Mathematics, 09.12.2019 18:31, chocolateFudge
Many birds are injured or killed by flying into windows. it appears that birds do not see windows. can tilting windows down so that they reflect earth rather than sky reduce bird strikes? researchers placed six windows at the edge of a woods: two vertical, two tilted downward 20 degrees, and two tilted downward 40 degrees. during the next four months, there were 53 bird strikes: 31 on the vertical windows, 14 on the 20‑degree windows, and eight on the 40‑degree windows.
why is a chi‑square procedure appropriate? sort the statements into those that are true for the above data and are also conditions for the chi‑square procedure, and those that are false. make sure you sort all the tokens into either the true or false category.
true vs. false
each observation falls into just one of the three categorical outcomes.
all observations are larger than 15 .
the deviations of observed counts from expected counts are not too small.
the probability of each categorical outcome is the same for each observation.
all observed counts are larger than five.
all observations are independent.
the expected counts are all 17.68 , greater than five.
there is a fixed number of 53 observations.
the sample size is larger than ten.
Answers: 3
Mathematics, 21.06.2019 18:00, ccdarling7185
The only way to identify an intercept is as an ordered pair. true false
Answers: 1
Mathematics, 21.06.2019 21:30, Brendah7145
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?
Answers: 1
Many birds are injured or killed by flying into windows. it appears that birds do not see windows. c...
Health, 28.06.2019 21:00