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Zombies eat, on average, 5 brains per day. Assume the actual number of brains eaten per day follows the normal distribution with a standard deviation of 0.29 brains. What is the probability that a zombie will eat exactly 3.2 brains tomorrow?
1.Cranberries can be harvested using either a wet method or a dry method.
A sample of 60 students from a large university is taken. The average age in the sample was 22 years with a standard deviation of 6 years.
the proportion of left-handed people in the general population is about 0.1. suppose a random sample of 225 people is
Four different assembly processes were under consideration. Sixteen workers were randomly assigned to the four processes, eight per process. The number of correctly assembled units in an eight-hour work shift was recorded:
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
identify three situations where the measured output of a process has a small variation and three situations where the
If random samples, each with n = 4 scores, are selected from a normal population with MK = 80 and o=10
during a national debate on changes to health care a cable news service performs an opinion poll of 500 small-business
in a large-sample test of hypothesis to compare the two means the test statistic was computed to be z 1.22. compute
If a new graduate is given a bunch of flowers from this outlet, what is the probability that the flowers were purchased by their partner or friend?
Determine a 95 % confidence interval for the iron concentration.
Define null and alternative hypothesis and, using sample info. Test manufacturer's claim at 0.01 (1%) level of significance.
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