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The statement is true that a sampling distribution is a probability distribution for a statistic.

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Q: True or False A sampling distribution is a probability distribution for a statistic?
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What is a requirement for use of the hypergeometric distribution Only 2 possible outcomes Trials are independent Probability of a success is greater than 1.0 Sampling with replacemen?

FALSE. The probability of success (or anything else) cannot be greater than 1.0


Is it true or false that the histogram of a probability distribution uses the physical area of each bar to represent its assigned probability?

False.


The F-distribution is symetrical around mean zero True or False?

The F-distribution is either zero or positive, so there are no negative values for F. This feature of the F-distribution is similar to the chi-square distribution. The F-distribution is skewed to the right. Thus this probability distribution is nonsymmetrical.


Another name for the mean of a probability distribution is its expected value true or false?

Yes, it is true.


True or False If the population distribution is unknown in most cases the sampling distribution of the mean can be approximated by the normal dist. if the samples contain at least 30 observations.?

true


True or False the probability that a standard normal random variable Z is between 1.50 and 2.10 is the same as the probability Z is between -2.10 and -1.50.?

It is true because the distribution is symmetrical about Z=0.


It's true or false that probability of standard normal random variable z is between 1.5 to 2.1 and is the same as the probability z is between -2.1 to -1.5?

True. Due to the symmetry of the normal distribution.


What is the power of a statistic?

The power of a statistical test is the probability that the test will reject the null hypothesis when it is, in fact, false. Please see the link.


True or false The' probability that it will rain today is 0.65 and probability that it will rain or snow is 0.55?

False; the "or" is an additive property so the probability of rain or snow muse be greater than or equal to 0.65.


This is an example of probability?

No, it is not. It is a statement. It is false, but that is not relevant.


If the tails of the normal distribution curve are infinitely long. Is it True or False that the total area under the curve is also infinite?

False. A normalized distribution curve (do not confuse normalized with normal), by definition, has an area under the curve of exactly 1. That is because the probability of all possible events is also always exactly 1. The shape of the curve does not matter.


A region in which there is a high probability of finding an electron is called a field true or false?

false