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1. Use of bed nets. A study found that the use of bed nets was associated with a lower prevalence of malarial infections in the Gambia.13 A report of the study states that the signi?cance is P 0.001.
Explain what this means in a way that could be understood by someone who has not studied statistics.
2. Purity of a catalyst. A new supplier offers a good price on a catalyst used in your production process. You compare the purity of this catalyst with that of the catalyst offered by your current supplier. The P-value for a test of "no difference" is 0.27. Can you be con?dent that the purity of the new product is as being statistically signi?cant. Explain what this means in simple terms and offer an explanation for why the health and safety students had a higher mean score.
according to cnn business partner careerbuilder.com the average starting salary for accounting graduates in 2008 was at
for a certain random variable having the normal distribution the probability is 0.33 that it will take on a value less
Utilizing the .05 level, do the results support the psychologists' theory. Elucidate your answer to somebody whom has never had a course in statistics.
A treasure chest contains 5 rubies, 8 diamonds, 7 emeralds, and 4 sapphires. If you pick a gem at random, what is the probability of choosing a ruby?
Perception of Time- Randomly selected statistics students of the author participated in and experiment to test their ability to determine when 1 min(or 60 seconds) has passed.
You are reading an article detailing a study designed to compare the average body mass index among hypertensive individuals (persons with high blood pressure) to normotensive individuals. The study was conducted using participants in a health pla..
identify three situations where the measured output of a process has a small variation and three situations where the
recent information published by the u.s. environmental protection agency indicates that honda is the manufacturer of
Indicate with Yes or No whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile.
Describe the similarities between an F-ratio and a t statistic. The basic relationship between t statistic and F-ratios can be stated in an equation. What is that equation?
If there are 12 business-class passengers and 50 tourist-class passengers on a particular light, what are the expected value of total luggage weight and the standard deviation of total luggage weight?
If 28% of the residents play poker and garden and 70% of the residents play both shuffleboard and poker, then find the probability that a resident plays poker, given that they garden.
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