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Suppose that 12 bats were used in the experiment. For each trail, the zoo keeper pointed to one of two "feeders". Suppose that the bats went to the correct feeder (the one that the zoo keeper point at) 8 times.
What would be the population proportion of number of times that bats would follow the point?
the international bottled water association says that americans on the average drink 4.6 8-oz. servings of water a day.
The article from which the data in Exercise 20 was obtained also gave the accompanying data on the composite mass/outer fabric mass ratio for high-quality fabric specimens
Use the large-sample version of the Wilcoxon test at significance level .05 on the data of Exercise 37 in Section 9.3 to decide whether the true mean difference between outdoor and indoor concentrations exceeds .20.
towards the end of the semester some statistics students decides that it might be helpful to stude in groups for their
A system is composed of three components operating independently. Two active components are sufficient for the system to function. Calculate the failure rate of the system if the lifetime Ti of component i has an exponential distribution with para..
To test the effectiveness of a new type of plastic handcuffs, a law enforcement agency puts the cuffs on a sample of 30 persons who belong to the local weightlifting club. None is capable to break free from the cuffs. What type of sampling techniq..
suppose thw weekly amount spent on repairs at a certain computer is normally distributed with a mean of 300 and a
in a 300 words documents minimum outline how to use the process evaluation method to increase the knowledge of signs
If you are using the method of least squares for fitting trends in an annual time series containing 25 consecutive yearly values.
a simple random sample of 60 households in city 1 is taken. in the sample there are 45 households that decorate their
It is believed that the effects of smoking differ depending on race. The following table gives the results of a statistical study for this question.
What is the probability that you end up with an A? (Enter your answer to three decimal places.)
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