Mathematics, 16.07.2019 17:30 kyliepugh1437
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be surveyed in order to be 95%
confident that your sample mean is within 11 minutes of the population mean? assume that the standard deviation of the population of monthly time spent on the internet is 202 min.
a) 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.)
b) what is a major obstacle to getting a good estimate of the population mean?
a. it is difficult to precisely measure the amount of time spent on the internet, invalidating some data values.
b. the data does not provide information on what the computer users did while on the internet.
c. there may not be 458 computer users to survey.
d. there are no obstacles to getting a good esitmate of the population mean.
Answers: 3
Mathematics, 21.06.2019 16:10, bananaslada
Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.
Answers: 3
Mathematics, 21.06.2019 16:30, ikgopoleng8815
11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%
Answers: 2
Mathematics, 21.06.2019 20:30, kevinseven23
Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints
Answers: 1
Mathematics, 21.06.2019 23:00, emilygoolsby2123
Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone
Answers: 1
In order to estimate the mean amount of time computer users spend on the internet each month, how ma...
Mathematics, 05.05.2020 23:05
Mathematics, 05.05.2020 23:05
Computers and Technology, 05.05.2020 23:05
Mathematics, 05.05.2020 23:06
History, 05.05.2020 23:06