Alma has developed a new kind of antibiotic that she expects to kill 90% of harmful bacteria when applied. She applied her antibiotic to a Petri dish full of bacteria, waited for it to take effect,...

Extracted text: Alma has developed a new kind of antibiotic that she expects to kill 90% of harmful bacteria when applied. She applied her antibiotic to a Petri dish full of bacteria, waited for it to take effect, and took a random sample of 100 bacteria. She found that 84% of them were dead. Let's test the hypothesis that the actual percentage of dead bacteria is 90% versus the alternative that the actual percentage is lower than that. The table below sums up the results of 1000 simulations, each simulating a sample of 100 bacteria, assuming there are 90% dead bacteria. According to the simulations, what is the probability of getting a sample with 84% dead bacteria or less? Let's agree that if the observed outcome has a probability less than 1% under the tested hypothesis, we will reject the hypothesis. What should we conclude regarding the hypothesis? Choose 1 answer:


Extracted text: Choose 1 answer: We cannot reject the hypothesis. B We should reject the hypothesis. Measured % of dead bacteria Frequency 80 4 82 12 84 33 86 99 88 158 90 249 92 230 94 153 96 51 98 11