7. Question Details MendStat147.TB.080. My Notes • Ask Your If a sample of n = 1

Question

7. Question Details MendStat147.TB.080. My Notes • Ask Your If a sample of n = 16 scores is randomly selected from a population with p = 80 and o = 16. If the sample mean is M = 84, then the corresponding z-score is z = +1.00. O True O False 8. • Question Details MendStat147.TB.071. DMy Notes • Ask Your A population has p = 40 with o = 8. The distribution of sample means for samples of size n = 4, selected from this population, would have an expected value of 40. O True O False IMy Notes o Ask Your 9. Question Details MendStat147.TB.079. If samples of size n = 40 are selected from a population, the distribution of sample means will be normal even if the population is not. O True O False

Explanation / Answer

1. z is given as (x-mean)/(s/sqrt(N))=(84-80)/(16/sqrt(16))=1 , thus TRUE

2. expected value is same as mean which is 40. thus TRUE

3. TRUE, means follow normal distribution when sample size is large

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