Questions 12a, 12b, & 12c ask about different components of a confidence interval from the same research study, presented below.  Researchers used a sample of n = 140 households in the US with cats to estimate that 35% of household cats in the US hunt outdoors.  Source:  “Domestic cats kill many more wild birds in the United States than scientists thought,” Milius, S.  Science News, Feb 2013. What is the z* (z-critical value) for a 99% confidence interval? You may want to use StatKey to determine this value.

A teacher is testing whether a new teaching method improves student performance on a standardized math exam. The null hypothesis (H₀) is that the new teaching method has no effect on student performance, while the alternative hypothesis (Ha) is that the new method does improve performance.  Choose the answer below that best describes what it means to make a type II error in this situation. 

Of 100,000 individuals exposed to a particular bacterial pathogen, 500 develop disease. Of the 500 individuals who develop the disease, 100 die. The mortality rate is ________ per 100,000 people.

Which of the following is an example of nosocomial disease transmission?

Which of the following types of nutrient media is used for Kirby-Bauer testing? 

What does the figure above represent? 

Polyenes and azoles are two classes of which type of antimicrobial drug? 

What type of antibiotic is bacitracin?

Match the mediator to its function.

Choose the correct pair of answers from the following to correctly fill in the blanks: SARS CoV-2 first occurred as an ___________ disease in Wuhan, China before becoming a __________ disease.