Mathematics, 13.11.2019 03:31, eggoysters
In 2010, the census bureau estimated the proportion of all americans who own their homes to be 0.669. an urban economist wants to estimate the current (2016) proportion of all americans who own their homes i. making use of the census bureau estimate as a starting point, what sample size does she need to be 90% confident and have the estimate within 0.02 of the true proportion? show your work. if she ignores the census bureau estimate, what sample size does she need to be 90% confident and have the estimate within 0.02 of the true proportion? show your work. ii. b. a researcher wants to estimate the mean hours per week that americans spend watching television. he has read an article about a survey conducted in 2014 that had s = 7.5 hours per week spent watching television. → what sample size does he need to estimate the population mean within 2 hours per week with 95% confidence? show your work.
Answers: 2
Mathematics, 22.06.2019 02:30, brimccauley6518
Write a ratio and a percent for the shaded area. it is 3x3 and 5x5 grid there is 6 shaded out of a. 6 over 25 , 30% b. 3 over 50 , 6% c.6 over 25 , 24% d. 3 over 10 , 30%
Answers: 1
Mathematics, 22.06.2019 03:50, awarnk
Acertain group of women has a 0.640.64% rate of red/green color blindness. if a woman is randomly selected, what is the probability that she does not have red/green color blindness? what is the probability that the woman selected does not have red/green color blindness? nothing (type an integer or a decimal. do not round.)
Answers: 1
In 2010, the census bureau estimated the proportion of all americans who own their homes to be 0.669...
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