Question

1) A sample is obtained from a population with μ = 35 and σ = 8. Which of the following samples would produce the z score closest to 0?

		A sample (n = 36) with M = 33.5
		A sample (n = 16) with M = 37
		A sample (n = 64) with M = 33
		A sample (n = 100) with M = 36

2) A sample obtained from a population with σ = 30 has a standard error of 5. How many scores are in the sample?

		150
		6
		36
		Cannot determine with the information given

3) What two z scores cut off the middle 95% of the normal distribution?

4) You have a normal population of scores with μ = 50 and σ = 14. What proportion of scores will have a z score of -0.80 or lower

Answer 1