You need to estimate the mean number of travel days per year for outside salespeople. The...
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You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 42 days. |
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If you must estimate the population mean within 8 days, how many outside salespeople should you sample? Use the 95% confidence level. (Use z Distribution Table.) (Round up your answer to the next whole number.) |
| Number of outside salespeople |
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You need to estimate the mean number of travel days per year for
outside salespeople. The...
You need to estimate the mean number of travel days per year for outside salespeople
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 36 days. If you must estimate the population mean within 10 days, how many outside salespeople should you sample? Use the 95% confidence level. Number of outside salespeople _______ Z Distribution Table:
You need to estimate the mean number of travel days per year for salespeople. The mean...
You need to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 32 days. If you must estimate the population mean within 5 days, how many salespeople should you sample? Use the 95% confidence level. (Use z Distribution Table.) (Round your answer to the next whole number.) Number of outside salespeople
You need to estimate the mean number of travel days per year for salespeople. The mean...
You need to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 48 days. If you must estimate the population mean within 12 days, how many salespeople should you sample? Use the 98% confidence level. (Use z Distribution Table.) (Round your answer to the next whole number.)
You need to estimate the mean number of travel days per year for outside salespeople. The...
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 30 days. If you must estimate the population mean within 6 days, how many outside salespeople should you sample? Use the 98% confidence level.
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 36 days. If you must estimate the population mean within 10 days, how many outside salespeo
you need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 36 days. If you must estimate the population mean within 10 days, how many outside salespeople should you sample? Use the 95 percent confidence level. (Round up your answer to the next higher whole number.) Number of outside salespeople
You need to estimate the mean number of travel days per year for outside salespeople. The...
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 160 days, with a standard deviation of 12 days. If you must estimate the population mean within 2 days, how many outside salespeople should you sample? Use the 98% confidence level. (Round the intermediate calculation to 3 decimal places. Round the final answer to the nearest whole number.) Number of outside salespeople
You wish to estimate the mean number of travel days per year for salespeople. The mean...
You wish to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 36 days. If you want to estimate the population mean within 7 days, how many salespeople should you sample? Use the 90% confidence level.
A large on-demand, video streaming company is designing a large-scale survey to determine the mean amount...
A large on-demand, video streaming company
is designing a large-scale survey to determine the mean amount of
time corporate executives watch on-demand television. A small pilot
survey of 10 executives indicated that the mean time per week is 13
hours, with a standard deviation of 2.5 hours. The estimate of the
mean viewing time should be within 30 minutes. The 98% level of
confidence is to be used. (Use z Distribution Table.) How many
executives should be surveyed? (Round the...
A survey is being planned to determine the mean amount of time corporation executives watch television....
A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 13 hours, with a standard deviation of 2.0 hours. It is desired to estimate the mean viewing time within one-quarter hour. The 95% level of confidence is to be used. (Use z Distribution Table.) How many executives should be surveyed? (Round your z-score to 2 decimal places and round up your final answer...
8.1.5 Question Help Determine the 95% confidence interval estimate for the population mean of a normal...
8.1.5 Question Help Determine the 95% confidence interval estimate for the population mean of a normal distribution given n = 100, o = 133, and x = 1,500 The 95% confidence interval for the population mean is from to (Round to two decimal places as needed. Use ascending order.) 8.1.14-T Question Help As a follow-up to a report on gas consumption, a consumer group conducted a study of SUV owners to estimate the mean mileage for their vehicles. A simple...
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 36 days. If you must estimate the population mean within 10 days, how many outside salespeople should you sample? Use the 95% confidence level. Number of outside salespeople _______ Z Distribution Table:
You need to estimate the mean number of travel days per year for salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 32 days. If you must estimate the population mean within 5 days, how many salespeople should you sample? Use the 95% confidence level. (Use z Distribution Table.) (Round your answer to the next whole number.) Number of outside salespeople
A large on-demand, video streaming company
is designing a large-scale survey to determine the mean amount of
time corporate executives watch on-demand television. A small pilot
survey of 10 executives indicated that the mean time per week is 13
hours, with a standard deviation of 2.5 hours. The estimate of the
mean viewing time should be within 30 minutes. The 98% level of
confidence is to be used. (Use z Distribution Table.) How many
executives should be surveyed? (Round the...
8.1.5 Question Help Determine the 95% confidence interval estimate for the population mean of a normal distribution given n = 100, o = 133, and x = 1,500 The 95% confidence interval for the population mean is from to (Round to two decimal places as needed. Use ascending order.) 8.1.14-T Question Help As a follow-up to a report on gas consumption, a consumer group conducted a study of SUV owners to estimate the mean mileage for their vehicles. A simple...
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