The question pertains to using hypothesis testing to compare the effectiveness of two instructional methods for teaching physiology, requiring a two-sample z-test. However, the question is incomplete as it does not specify the exact statistical measure needed or the level of significance; therefore, it's not possible to provide a final answer without further details.
The question asks to determine the effectiveness of two different instructional methods for teaching physiology by comparing the average test scores of two samples of students. The first step to answering this question is to set up a hypothesis test to see if the difference in means is statistically significant. Using the given information, the sample means, population standard deviations, and sample sizes, we can proceed to calculate the test statistic.
The hypothesis test in this scenario is a two-sample z-test since the population standard deviations are known. However, the question appears incomplete as it does not specify the level of significance (e.g., 99%) or ask a specific question we need to address. If we assume the question was asking to determine the 99% confidence interval or to perform a hypothesis test at the 99% significance level, we will need additional information to complete the calculation.
In conclusion, without the full context or the actual question being asked, we cannot provide a final answer or conclusion. To properly answer this question, we would need the missing details such as the hypothesis to be tested or whether a confidence interval or a hypothesis test result is being sought.