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How is the flow of investors money into stock mutual funds related to the flow of money into bond mutual funds? Here are data on the net new money flowing into stock and bond mutual funds in the years 1985 to 2000, in billions of dollars. Net means that funds flowing out are...
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Please define the purpose or the hypothesis for a non-probability sampling using classmates, friends, and family members to respond to a survey conducted by the students? 200 word limit.Thanks! hide problem
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A man rolls an ordinary die 6 times. What is the probability that he gets at least 5 threes? Round your answer to four decimal places.
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The lifetime of a 2 volt non-rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. Ninety percent of all batteries have a lifetime less than
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70% of smokers started smoking before the age of 18. Suppose 10 smokers are randomly selected and the number of smokers who started to smoke before the age of 18 is recorded. a) explain why this is binomial experiment. b) find the probability that exactly 7 of them started smoking before...
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I have resubmitted my question several times and have not seen any response. What further is needed?
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Please note there are 2 attachments because the original got cut off. I have submitted this several times and have not received any response, so I am starting over. Thanks in advance!
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The mean cost of a certain charger is $98 with a standard deviation of $ 4. Assume the cost has a bell shaped distribution. Fill in the following form Interval Percentage of the data 90 to 106 94 to 102 98 to 106 Greater than 106 Less than 94
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Hi Natalia, This is actually due today. Is it at all possible to meet the deadline?
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The American Veterinary Assoication claims that the annual cost of medical care for dogs in the US averages $100 with a standard deviation of $30. The annual cost for cats is reported to be $120 with a standard deviation of $40. You may assume that veterinary costs for dogs and cats are...
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- 1. A school administrator wonders if students whose first language is not English score differently on the math portion of the sat exam than students whose first language is English. The mean SAT math score of students whose first language is english is 516 on the basis of data obtained from the college board. A simple random sample of 20 students whose first language is not English result in a sample mean SAT math score of 522. SAT math score are normally distributed with a population standard deviation of 114. Why is it necessary for SAT math scores to be normally distributed to test the hypothesis?
- 2. What are the steps espoused by Applied Statistics in Business and Economics for formal hypothesis testing? Why is the sequence important?
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