1. A value that gives the maximum possible deviation between the point estimate of a parameter and the true value of the parameter.

A. Standard Error of the Mean

B. Degree of Confidence

C. Margin of Error

D. Minimum Sample Size

2. Consistency is key. Whenever we say that a product is of better quality, it refers to the variability in production. Say it is expected that a set of batteries should approximately last 20 hours with a variability of 1-2 hours. I want to test if the quality of a new brand of batteries is comparable to the average. What test should I perform?

A. One sample chi-square test

B. One sample proportion z-test

C. Two sample proportion z-test

D. Two sample F-test

3. The manufacturer of a patent medicine claimed that it was 90% effective in relieving an allergy for period of 8 hours. He then proves this claim by selecting a simple random sample of allergy patients. To test the legitimacy of the manufacturer's claim, what test of hypothesis should we use?

A. One sample t-Test

B. Two sample t-Test for paired samples

C. Two sample z-Test for proportions

D. One sample z-Test for proportions

4. Which of the following is a characteristic of a confidence interval?

A. It is constructed using the point estimate, standardized statistic, and standard deviation

B. A higher confidence level results to a narrower interval

C. A confidence interval presents a range which shows the only values a point estimate can take.

D. A confidence interval of a population will always be consistent.

Statements for #5. I. In all normal distributions, the mean and median are equal. II. All bell-shaped curves are normal distribution for some choices of and . III. Virtually all area under a normal curve is within three standard deviations of the mean, no matter what the particular mean and standard deviations are.

5. Which of the above statements are true statements?

A. I and II

B. I and III

C. II and III

D. I, II and III

6. A new type of reaction catalyst was invented which would speed up the fermentation process in beverage production. A test will be conducted focusing on showcasing the improved ability of this new catalyst vs an old formulation. What kind of test must be conducted?

A. One-tailed: _new > _old

B. One-tailed: _new < _old

C. Two-tailed: _new _old

D. Not enough information

7. What type of statistical test should be used when the population is approximately normally distributed and the population standard deviation is unknown.

A. Z- test

B. T-test

C. F -test

D. Test for proportion

8. Listed below are the statistical distributions that rely on the number of degrees of freedom of the dataset, EXCEPT:

A. Standard Normal (z) distribution

B. Chi-Square distribution

C. F distribution

D. t Distribution