1. A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds? A) 375 B) 449 C) 538 D) 507 2. What do you conclude if 50,000 people respond to an NBC News survey in which TV viewers were asked to call a toll-free number, and 67% oppose any restrictions on the Internet? You do not need to do any calculations.Document Preview:1. A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds? A) 375 B) 449 C) 538 D) 507 2. What do you conclude if 50,000 people respond to an NBC News survey in which TV viewers were asked to call a toll-free number, and 67% oppose any restrictions on the Internet? You do not need to do any calculations. Rather try to look at this result critically in terms of what audience was captured and what kind of sample was used. Do you think that the results are representative of the US population as a whole? Why or why not? 3. 6 squirrels were found to have an average weight of 9.2 ounces with a sample standard deviation is 0.7. Find the 95% confidence interval of the true mean weight. A) 8.5Attachments: week-5-stats..docx
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