0.06 4:04 KB/S > Answer Mathematics College Question 78 Answer what is 1. A classroom teacher hypothesizes that using lecture method in teaching specific lesson is the same as teaching it using demonstration method in terms of students' learning. This means that students who were taught using the lecture method would perform similarly (say on a test) than those were taught using demonstration method. Formulate the null and alternative hypothesis in sentence and in symbol. 2. According to NSCB statistics, the life expectancy of Filipino women is 70.1 years. Suppose a random sample of 30 women in town B yields a mean of 72.5 years with a population variance of 4.76 years, would you say that the life expectancy of the women in town B is greater than the average? a. Formulate the null and alternative hypothesis in sentence and in symbol b. Determine what test statistic to use c. Compute the test statistic 3. Medical literature tells us that our blood is mainly composed of red and white corpuscles and a normal human body must average 7250/mm³ of white blood cell counts. If a sample of 15 individuals chosen at random from a certain place has an average of 4850/mm³ with a standard deviation of 2500/mm³ would you say that the people in that place have low white blood cell counts? a. Formulate the null and alternative hypothesis in sentence and in symbol b. Determine what test statistic to use c. Compute the test statistic calubingclarencejoy ⚫ Helping Hand ... ☐​