d1)True or False. the law of large number states that as the number of observati

Question

d1)True or False. the law of large number states that as the number of observation drawn at random from a population increases, the mean of the observed values get closer and closer to the actual population mean.

2) True or False. we need a normally distributed variable in a population so that we have a normally distributed sampling distribution.

3) True or False. As the size of a sample from a population increases, the standard devation of the sampling distribution will decrease if nothing else changes

4) True or False. The correlation coefficient r is symmetric but the slop b is not.

5) True or False. A cross-tab is the best way to analyze the relationship between two categorical variables.

Explanation / Answer

1)True. the law of large number states that as the number of observation drawn at random from a population increases, the mean of the observed values get closer and closer to the actual population mean.

2)False. we do not need a normally distributed variable in a population so that we have a normally distributed sampling distribution.

3) True. As the size of a sample from a population increases, the standard devation of the sampling distribution will decrease if nothing else changes

4) True . The correlation coefficient r is symmetric but the slop b is not.

5) True A cross-tab is the best way to analyze the relationship between two categorical variables.

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