don't doChapter 8 Section 8.1 # 5 & 8.2 # 1Chapter 8 Section 8.1 #13, Chapter 8 Section 8.2 #3 cuz other students already did

Section 8.1
Question 4. What conditions are necessary in order to use the z-test to test the difference between the two population means?
Answer: The z-test is used to test one-sample, two-sample population means. The assumptions for conducting z-test are given as follows:
1. The distribution of the two population is normally distributed.
2. The variance to two population is known and...