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United Blood Services is a blood bank that serves more than 500 hospitals in 18 states. According to their website, a person with type O blood and a negative Rh factor (Rh-) can donate blood to any person with any bloodtype. Their data shows that 43% of people have type O blood and 15% of people have Rh- factor; 52% of people have type O or Rh- factor. Find the probability that a person has both type O blood and the Rh- factor.
What does the error of estimation tell us about the results of a study conducted using probability sampling?- What happens to the error of estimation as one's sample size increases?
Write the four parts for a two-sided hypothesis test concerning the population mean with a = 0.002.- Suppose x‾ = 9.04 and σ = 1.20. Find the value of the test statistic, and draw a conclusion about the population mean.
the owner of a donut shop wishes to determine the best mix for her three products zingers crullers and eacuteclairs.
in 2010 a gallup poll surveyed 1016 households in the u.s about their pets. of those surveyed 599 said they had at
Houston is $19,900 and in Los Angelos is $21,800. What is the probability that a brand manager in Houston has a base salary in excess of $100,000?
Data on Generic product purchases Frequency of Visit Often Purchase Sometimes Never
Explain why you would also like to know the standard deviations of the battery lifespans before deciding which brand to buy.
What is the standard deviation of the following data? If necessary, round your answer to two decimal places. 600, 470, 170, 430, 300.
Suppose a national survey conducted among a simple random sample of 1534 American adults, 816 indicate that they think the Civil War is still relevant
suppose the counts recorded by a geiger counter follow a poisson process with an average of three counts per minute.a
What assumptions did you use when solving problems I through II? What assumptions did you not make about the populations in question? Explain.
A new computer chip has one million microdots etched on its surface. In the manufacturing process, 997, 850 dots are imprinted with information.
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