Following a dramatic drop of 500 points in the Dow Jones Industrial Average in S

Question

Following a dramatic drop of 500 points in the Dow Jones Industrial Average in September 1998, a poll conducted for the Associated Press found that 92% of those polled said that a year from now their family financial situation will be as good as it is today or better. which of the following terms describes the number 92%? statistic. sample. sample parameter. population parameter. population. What is distribution of values taken by a statistic in all possible samples of the same size from the same population called? the probability that the statistic is obtained. the population parameter. the variance of the values. the sampling distribution of the statistic. the distribution of sample data. If a statistic used to estimate a parameter is such that the mean of its sampling distribution is equal to the true value of the parameter being estimated, what is the statistic said to be? random biased a proportion unbiased non-varying. Suppose you take a random sample of size 25 from a population with mean of 120 and a standard deviation of 15. Your sample has a mean of 115 and a standard deviation of 13.8. Which of the following has a mean of 120 and a standard deviation of 3? the distribution of the population the distribution of the sample data. the sampling distribution of the sample mean. the sampling distribution of the population mean. No important distribution related to this situation has the given mean and standard deviation.

Explanation / Answer

1) a 2) e 3) c 4) d

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