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statistics (please help)
Choose the correct response. Why is sampling without replacement acceptable with a large population? a. When a small sample is taken from a large population, the samples maintain their independence. b. When a large sample is taken
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Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model. A sample of 1800 bacteria selected from this population reached the size of 2272 bacteria in five hours.
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The mean taxreturn preparation fee H&R Block charged retail customers last year was $183 (The Wall Street Journal, March 7, 2012). Use this price as the population mean and assume the population standard deviation of preparation
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2. The Rathburn Manufacturing Company makes electric wiring, which it sells to contractors in the construction industry. Approximately 900 electric contractors purchase wire from Rathburn annually. Rathburn's director of marketing
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What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not
asked by Jacob on June 22, 2010 
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What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not
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I have done parts of this question (they are capitalized)which I was hoping someone could double check, and there are other parts that I need help on. 1. The manager of a fitness center is interested in the average
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The National Assessment of Educational Progress tested a simple random sample of 1000 thirteen year old students in both 2004 and 2008 and recorded each student's score. The average and standard deviation in 2004 were 257 and 39,
asked by ramj on June 14, 2020

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A simple random sample of 60 items resulted in a sample mean of 96. The population standard deviation is 16. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean
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Choose from these answers: [(A):histogram] [(B):population] [(C):parameter] [(D):statistic] [(E):random sample] 1. A ________ provides a numerical description of a sample. 2.The number of people in the U.S. as measured by the
asked by Anonymous on April 24, 2015 
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Women athletes at the a certain university have a longterm graduation rate of 67%. Over the past several years, a random sample of 39 women athletes at the school showed that 23 eventually graduated. Does this indicate that the
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The null and alternate hypotheses are: H0: π1 ≤ π2 H1: π1> π2 A sample of 100 observations from the first population indicated that X1 is 70. A sample of 150 observations from the second population revealed X2 to be 90. Use
asked by John on July 24, 2012
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