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1. The sample mean and sample variance of five data values are, respectively, x¯ = 104 and s2 = 16. If three of the data values are 102, 100, 105, what are the other two data values?
2. Suppose you are given the average pay of all working people in each of the 50 states of the United States.
(a) Do you think that the sample mean of the averages for the 50 states will equal the value given for the entire United States?
(b) If the answer to part (a) is no, explain what other information aside from just the 50 averages would be needed to determine the sample mean salary for the entire country. Also, explain how you would use the additional information to compute this quantity.
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Among those taking the Graduate Record Exam, 18 people are randomly selected.
The new study is going to use the confidence level of 90%. The estimator or appreciative must be in 1% of the population proportion. Which is the necessary size of the sample?
q1 an electronics company is about to launch a new product. if the serial number for each piece produced has the
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Suppose that you go out to sauerkraut pizza with two friends. you have agreed to the following rule to decide who will pay the bill. each person will toss a coin. the person who gets a result that is different from the other teo will pay the bill...
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according to salary wizard the average base salary for a brand manager in houston texas is 88592 and the average base
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