S South University Camp x D Statisti IMAT2058 so3 X Take a Test Yujane Lam x C c
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S South University Camp x D Statisti IMAT2058 so3 X Take a Test Yujane Lam x C chegg study IGuided sc x CIIcheggcom Yujane Secure h ps://www. mathxl.com /Student/PlayerTest aspx?testld 55027879 Apps My Pages -south Uni fedloan nv energy DC Connexus Log In zenefits Log In Iserve from Au Movie10k Watch M other bookmarks Statistics I MAT2058 S03 (2) Yujane Lampkin & Quiz: W4: ment 3 Quiz Submit Quiz This Quiz: 50 pts possible This Question 5 pts 7 of 10 (6 complete) Y Show Work 1E Question Help In order to estimate the mean amount of time computer users spend on the intemet each month, how many computer users must be surveyed in order to be 90% confident that your sample mean is within 12 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 206 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated minimum required sample size. The minimum sample size required is Computer users. (Round up to the nearest whole number) What is a major obstacle to getting a good estimate of the population mean? O The data does not provide information on what the computer users did while on the internet. O B. It is difficult to precisely measure the amount of time spent on the internet, invalidating some data values. O C. There may not be 798 computer users to survey O D. T are no obstacles to getting a good ate of the population mean. here Click to select your answer(s).Explanation / Answer
Compute Sample Size
n = (Z a/2 * S.D / ME ) ^2
Z/2 at 0.1% LOS is = 1.64 ( From Standard Normal Table )
Standard Deviation ( S.D) = 206
ME =55
n = ( 1.64*206/55) ^2
= (337.84/55 ) ^2
= 37.73 ~ 38
The data does not provide information on that the computer users did while on the internet
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