1. What does the alpha symbol (α) stand for in Statistics?

A. Rejection region B. Mean C. Significance levelD. Standard deviation

2. Where would the rejection region be if there is a “<” sign in the null hypothesis?

A. Left tail-end B. MiddleC. Right tail-end D. Right side

3. How many SD will a value be away from the mean if 95% of the normal curve is covered?

A. 0B. 2 C. 3D. 4

4. Which of the following symbols are not classified as directional?

A. <B. >C. ≠ D. =

5. What is the correct formula for getting the z-score?

A. (α-x)/σ B. (μ-x)/σ^2C. (μ-x)/σ D. α-x/σ

6. Which is not a property of a normal curve?

A. Mean, median and mode are equalB. Total area under the curve is 1C. It is asymmetric about the mean D. The curve approaches but never touches the mean

7. Which term describes how much the data are spread out?

A. ProbabilityB. Standard deviationC. Distribution D. Mean

8. Which term is described by these: thinner, narrower, steeper

A. Lower sdB. Higher sdC. Lower mean D. Higher mean

9. It is when the value of the mean is 0 and standard deviation is 1.

A. Standard normal distribution B. Normal distributionC. Normal random variableD. Line of symmetry

10. The Standard Deviation is..

A. The average of all the values givenB. The interval of the values on the x-axisC. The sum of all the valuesD. The Z-scores

11. “I have less than 100 pesos today.” μ<100. If this is the null hypothesis, what is the alternative hypothesis?

A. μ> 100B. μ< 100C. μ = 10D. μ≠ 100

12. These are the values that are the borderline between the region of acceptance and the rejected region.

A. Standard DeviationB. MedianC. Critical ValuesD. Mean

13. This is the initial claim, or what is assumed to be true until proven wrong.

A. Invalid HypothesisB. Valid HypothesisC. Null HypothesisD. Alternative Hypothesis

14. This is what you might believe to be true, or hope to prove true.

A. Null HypothesisB. Alternative HypothesisC. Kayo ni CrushD. The Accepted Region

15. This is a subset of a population, and what is used to make inferences about the population.

A. Paired T TestB. 2 sample testC. SampleD. Subset