1.Suppose we are estimating m. What happens to the required sample size as the desired margin...
1.Suppose we are estimating m. What happens to the required sample size as the desired margin of error increases while the population standard deviation and confidence level remain constant?
2. A quality control engineer would like to estimate the mean fill amount of a certain bottle-filling machine to within 0.05 liter. If we assume that the population standard deviation is 0.17 liters, how large of a sample is needed to estimate m with 98% confidence?
3.Assume the fill amount of bottles of a soft drink, X, is normally distributed with a mean of 2.0 liters and standard deviation of 0.05 liter. Which of the following is equivalent to P(1.90> X)?
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1.Suppose we are estimating m. What happens to the
required sample size as the desired margin...
Confidence Interval Problem Question 3 The inspection division of the LCC company wants to estimate the...
Confidence Interval Problem Question 3 The inspection division of the LCC company wants to estimate the actual amount of soft drink in 2-liter bottles at the local bottling plant of a large nationally known soft-drink company. The bottling plant has informed the inspection division that the population standard deviation for 2-liter bottles is 0.05 liter. A random sample of 80 2-liter bottles at this bottling plant indicates a sample mean of 1.985 liter a) Construct a 99% confidence interval estimate...
If the manager of a bottled water distributor wants to estimate, with 95% confidence, the mean...
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...
3. The fill amount of bottles of a soft drink is normally distributed, with a mean...
3. The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.08 liter. Suppose you select a random sample of 25 bottles. a. What is the probability that the sample mean will be between 1.90 and 2.01 liters? b. What is the probability that the sample mean will be below 1.80 liters? The probability is 90% that the sample mean amount of soft drink will be between...
The fill amount in 2-liter soft drink bottles is normally distributed, with a mean of 2.0...
The fill amount in 2-liter soft drink bottles is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. If bottles contain less than 95% of the listed net content (1.90 liters, in this case), the manufacturer may be subject to penalty by the state office of consumer affairs. Bottles that have a net content above 2.10 liters may cause excess spillage upon opening. What proportion of the bottles will contain between 1.90 and 2.0...
The fill amount of bottles of a soft drink is normally distributed, with a mean of...
The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. If you select a random sample of 25 bottles, what is the probability that the sample mean will be between 1.99 and 2.0 liters? below 1.98 liters? greater than 2.01 liters? The probability is 99% that the sample mean amount of soft drink will be at least how much? The probability is 99% that the...
If the inspection division of a county weights and measures department wants to estimate the mean...
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 and also assumes that the standard deviation is 0.07 liters, what sample size is needed?
The fill amount of bottles of soft drink has been found to be normally distributed with a mean of 2.0 liters and a standard deviation of 0.05 liters
The fill amount of bottles of soft drink has been found to be normally distributed with a mean of 2.0 liters and a standard deviation of 0.05 liters. If random sample of bottles is selected, what is the probability that the sample mean will be between 1.99 and 2.0 liters:: The fill amount of bottles of soft drink has been found to be normally distributed with a mean of 2.0 liters and a standard deviation of 0.05 liters. If random...
Suppose that you are interested in estimating the mean amount of soda that is placed in...
Suppose that you are interested in estimating the mean amount of soda that is placed in 2-liter bottles at the local bottling plant of a large nationally known soda company. The bottling plant has informed the inspection division that the standard deviation for 2-liter bottles is .07 liter. A random sample of fifty 2-liter bottles obtained from this bottling plant indicated a sample mean of 2.02 liters. a. What is the point estimate of the population mean? b. Calculate the...
The fill amount of bottles of a soft drink is normally distributed, with a mean of...
The fill amount of bottles of a soft drink is normally distributed, with a mean of 3.0 liters and a standard deviation of 0.07 liter. Suppose you select a random sample of 25 bottles. a. What is the probability that the sample mean will be between 2.99 and 3.0liters? b. What is the probability that the sample mean will be below 2.98 liters? c. What is the probability that the sample mean will be greater than 3.01 liters? d. The...
The fill amount in 11-liter soft drink bottles is normally distributed, with a mean of 1.01.0...
The fill amount in 11-liter soft drink bottles is normally distributed, with a mean of 1.01.0 literliter and a standard deviation of 0.050.05 liter. If bottles contain less than 9696% of the listed net content (0.960.96 liters, in this case), the manufacturer may be subject to penalty by the state office of consumer affairs. Bottles that have a net content above 1.061.06 liters may cause excess spillage upon opening. In an effort to reduce the number of bottles that contain...
3. The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.08 liter. Suppose you select a random sample of 25 bottles. a. What is the probability that the sample mean will be between 1.90 and 2.01 liters? b. What is the probability that the sample mean will be below 1.80 liters? The probability is 90% that the sample mean amount of soft drink will be between...
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