Mathematics, 18.05.2021 01:00, rebekahhenton
A 2005 study looked at a random sample of 800 Canadians between the ages of 18 and 24 years, and asked them the following yes or no question: "When nothing is occupying my attention, the first thing I do is reach for my phone.” 77% responded yes to this question.
1) Using the above scenario, construct and interpret a 90% confidence interval.
2) Using the above scenario, test the claim and draw the appropriate conclusion at α = 0.05 that more than 75% of all Canadians in this age group would respond "yes" to the given statement.
Answers: 1
Mathematics, 21.06.2019 22:00, KindaSmartPersonn
20 points 1. your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph. 2. taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1
Answers: 2
Mathematics, 21.06.2019 22:50, Yangster9305
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
A 2005 study looked at a random sample of 800 Canadians between the ages of 18 and 24 years, and ask...
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