The samples is needed to estimate this proportion to within ±0.03 with 99% confidence is 1635 bottles.
According to an article the bottled water you are drinking may contain more bacteria and other...
According to an article the bottled water you are drinking may contain more bacteria and other potentially carcinogenic chemicals than are allowed by state and federal regulations. Of the more than 1000 bottles studied, nearly one-third exceeded government levels. Suppose that a department wants an updated estimate of the population proportion of bottled water that violates at least one government standard. Determine the sample size (number of bottles) needed to estimate this proportion to within ±0.02 with 99% confidence. The...
According to an article the bottled water you are drinking may contain more bacteria and other potentially carcinogenic chemicals than are allowed by state and federal regulations. Of the more than 1200 bottles studied, nearly one-third exceeded government levels. Suppose that a department wants an updated estimate of the population proportion of bottled water that violates at least one government standard. Determine the sample size (number of bottles) needed to estimate this proportion to within 0.02 with 99% confidence. The...
water you are drinking may contain more bacteria and other potentally carcinogenic chemicals than are allowed by state and federal regulations. Of the more than 1500 bottles studied, nearly one-third exceeded government levels. Suppose that a departm ent wants an updated estimate of the population proportion of bottled water that violates at least one government standard. Determine the sample size (number of botes) needed to estimate this proportion to within t 0 01 with 99% confidence. The sample size needed...
water you are drinking may contain more bacteria and other potentialy carcinogenic chemicals than are allowed by state and federal regulations. Of the more than 1400 bottlies stud violates at least ded, nearly one-third exceeded government levels. Suppose that a department wants an updated estimate of the population proportion of bottled water that one government standard. Determine the sample size (number of bottles) needed to estimate this proportion to within ± 0.02 with 99% confidence The sample size needed to...
A bottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. The water bottling company's specifications state that the standard deviation of the amount of water is equal to 0.03 gallon. A random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.985 gallon. Construct a 99% confidence interval estimate for the population mean amount of water included in a...
If the manager of a bottled water distributor wants to estimate, with 95% confidence, the mean amount of water in a 1-gallon bottle to within ±0.003 gallons and also assumes that the standard deviation is 0.03 gallons, what sample size is needed? Round up to the nearest integer.)
If the manager of a bottled water distributor wants to estimate, with 95% confidence, the mean amount of water in a 1-gallon bottle to within ± 0.004 gallons and also assumes that the standard deviation is 0.04 gallons, what sample size is needed? (Round up to the nearest integer) If the inspection division of a county weights and measures department wants to estimate the mean amount of soft-drink fill in 2-liter bottles to within ± 0.02 liter with 90% confidence...
lf the manager of a bottled water distributor wants to estimate, with 99% confidence, the mean amount a water in a 1-gallon bottle to within ± 0.005 gallons and a so assumes that the standard deviation is 0.02 gallons, what sample size is needed? n-11 (Round up to the nearest integer.)
Thirty-five percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defence Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites to estimate the proportion who drink bo water more than once a week. Assume the population proportion of St. Paulites who drink bottled water more than once a week is 0.35, the...
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. you know from the water bottling company specifications that the standard deviation of the amount of water is 0.03 gallon. You select a random sample of 45 bottles, and the mean amount of water per 1-gallon bottle is 0.997 gallon. a) What is/are the critical value(s) (use alpha= 0.01) ( round...