6. In order to estimate the mean amount of time computer users spend on the internet...
6. 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 90% 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 228 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. - What is the minimum sample size? - What is a major obstacle?
Homework Answers
It is difficult to precisely measure the amount of time spent on the internet, invalidating some data values.
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6. In order to estimate the mean amount of time computer users
spend on the internet...
In order to estimate the mean amount of time computer users spend on the internet each...
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 90% 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 208 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
In order to estimate the mean amount of time computer users spend on the internet each...
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 90% confident that your sample mean is within 15 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 224 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
In order to estimate the mean amount of time computer users spend on the internet each...
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 200 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
in order to estimate the mean amount of time computer users spend on the internet each...
in order to estimate the mean amount of time computer users spend on the internet each month, how many computers users must be surveyed in order to be 95% confidence that your sample mean is within 13 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 218 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
In order to estimate the mean amount of time computer users spend on the internet each​...
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 90​% confident that your sample mean is within 14 minutes of the population​ mean? Assume that the standard deviation of the population of monthly time spent on the internet is 198 min. The minimum sample size required is_______computer users. Many states are carefully considering steps that would help them collect sales taxes...
Homework: Section 7-3 Homework Say Score: 0 of 1 pt 10 of 19 (11 complete) HW Score: 56%, 14 of 25 7.3.28-T Assigne...
Homework: Section 7-3 Homework Say Score: 0 of 1 pt 10 of 19 (11 complete) HW Score: 56%, 14 of 25 7.3.28-T Assigned Media Question Help In order to estimate the mean amount of time computer users spend on the internet each month, how many computer 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...
& 4/24/19 355 AM Quiz: Week 4 Quiz Submit Quz This Question: 5 pts This Quiz:...
& 4/24/19 355 AM Quiz: Week 4 Quiz Submit Quz This Question: 5 pts This Quiz: 50 pts Hep In order to to find the estimated minimum required sample size Round up to the nearest whole number) how many oomputer users must besurveyed n oder to be 95% oor-dert tat your sample mean is wein 11 of the population of monthly tme spent on the intermnet is 214 mi. What is a major obstacle to getting a good estimate of...
Executives of a supermarket chain are interested in the amount of time that customers spend in...
Executives of a supermarket chain are interested in the amount of time that customers spend in the stores during shopping trips. The executives hire a statistical consultant and ask her to determine the mean shopping time, p, of customers at the supermarkets. The consultant will collect a random sample of shopping times at the supermarkets and use the mean of these shopping times to estimate p. Assuming that the standard deviation of the population of shopping times at the supermarkets...
suppose that the amount of time a teenagers spend on the internet is normally distributed with...
suppose that the amount of time a teenagers spend on the internet is normally distributed with a standard deviation of 1.5 hours. A sample of 100 teenagers is selected at random, and the sample mean computed as 6.5 hours. a. determine the 95% confidence interval estimate of the population mean. b. interpret what the confidence interval estimate tells you.
An advertising executive wants to estimate the mean weekly amount of time consumers spend watching traditional...
An advertising executive wants to estimate the mean weekly amount of time consumers spend watching traditional television daily. Based on previous studies, the standard deviation is assumed to be 26 minutes. The executive wants to estimate, with 99% confidence, the mean weekly amount of time to within ±33 minutes. a. What sample size is needed? b. If 95% confidence is desired, how many consumers need to be selected? a. The sample size required for 99% confidence is ___
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 90% confident that your sample mean is within 15 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 224 min. What is a major obstacle to getting a good estimate of the population mean? Use technology to find the estimated...
Homework: Section 7-3 Homework Say Score: 0 of 1 pt 10 of 19 (11 complete) HW Score: 56%, 14 of 25 7.3.28-T Assigned Media Question Help In order to estimate the mean amount of time computer users spend on the internet each month, how many computer 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...
& 4/24/19 355 AM Quiz: Week 4 Quiz Submit Quz This Question: 5 pts This Quiz: 50 pts Hep In order to to find the estimated minimum required sample size Round up to the nearest whole number) how many oomputer users must besurveyed n oder to be 95% oor-dert tat your sample mean is wein 11 of the population of monthly tme spent on the intermnet is 214 mi. What is a major obstacle to getting a good estimate of...
Executives of a supermarket chain are interested in the amount of time that customers spend in the stores during shopping trips. The executives hire a statistical consultant and ask her to determine the mean shopping time, p, of customers at the supermarkets. The consultant will collect a random sample of shopping times at the supermarkets and use the mean of these shopping times to estimate p. Assuming that the standard deviation of the population of shopping times at the supermarkets...
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