5. According to an official statement released by the state of California, the average height of a Redwood tree in...
5. According to an official statement released by the state of California, the average height of a Redwood tree in California is 350 ft. To assess this claim, a scientist collects a sample of 50 randomly chosen Redwood trees in California. She finds that the average heights in her sample is 355 ft. We assume it is known that the population standard deviation is 42 ft (a) Conduct a hypothesis test to assess whether the true average height is 350...
find answer of question 8 that is follow question 5 5. According to an official statement released by the state of California, the average height of a Redwood tree in California is 350 ft. To assess this claim, a scientist collects a sample of 50 randomly chosen Redwood trees in California. She finds that the average heights in her sample is 355 ft. We assume it is known that the population standard deviation is 42 ft. (a) Conduct a hypothesis...
i am specifically looking at 4 and 5 1. A city official claims that the proportion of all commuters who are in favor of an expanded public transportation system is 50%. A newspaper conducts a survey to determine whether this proportion is different from 50%. Out of 225 randomly chosen commuters, the survey finds that 90 of them reply yes when asked if they support an expanded public transportation system. Test the official's claim at a = 0.05. 2. A...
n-Class Exercise 1 Instructions: Submit your work through Blackboard by the due date. Late submissions are not allowed. You can take photos of or scan your solutions Calculate or write the formulas for each test statistic and p-value for each hypothesis test question (questions 7-10). It is true you will never have to calculate these in real life, however, you should know what Megastat, or any other statistical software, is calculating. 1) According to an IRS study, it takes a...