there is for the purpose of budgeting cost for funding. Jim takes out a random sample of n=100 apartments and finds the sample mean to be 605. he also knows that the population standard deviation is 72. a.) Calculate the 90% confidence interval for theabove. (Useful tip: Use table 1 on pg. 3 of Lesson 6 part 1, to findZ90% ) b.) Calculate the 99% confidence interval for the above. (Useful tip: Use table 1 on pg. 3 of Lesson 6 part 1, to find Z99% ) c.) For what sample size N is needed to ensure a margin of error=0.1 for 99% confidence.
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