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1 When a great many simple random samples are drawn from a population that is normally distributed, the same means will also be normally distributed

1When a great many simple random samples are drawn from a population that is normally distributed, the same means will also be normally distributed only when the sample size is greater than 30. true or false

2.Suppose an actual census showed that 18.4% of the households in California have incomes in excess of $50,000. The probability that the sample proportion will be 0.22 or greater for a random sample of 750 households is:

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3.true or false The standard deviation of the binomial distribution withn= 25 andp= .50 is 6.25.

4.True or false. Any normal distribution is a symmetrical, bell-shaped curve, with mean= 0.0 and standard deviation= 1.0.

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