A quality control person for a company bottling juice took a random sample of 12 bottles...
A quality control person for a company bottling juice took a random sample of 12 bottles of juice from the day's production of many thousands. He computed a sample mean of 15.92 ounces per bottle with a sample standard deviation of 0.13 ounces. What is his 90% confidence interval for the mean ounces per bottle for the days total production, based on these measurements? ( he is assuming that the ounces per bottle has a normal distribution.)
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A quality control person for a company bottling juice took a
random sample of 12 bottles...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each bottle produced is supposed to contain exactly 12 fluid Ounces (fl oz) of juice. Susan decides to test this by randomly sampling 30 filled bottles and carefully measuring the amount of juice inside each. She will recalibrate the machinery if the average amount of juice per bottle differs from 12 fl oz at the 1% significance level. The sample of 30 bottles has an...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each bottle produced is supposed to contain exactly 12 fluid Ounces (fl oz) of juice. Susan decides to test this by randomly sampling 30 filled bottles and carefully measuring the amount of juice inside each. She will recalibrate the machinery if the average amount of juice per bottle differs from 12 fl oz at the 1% significance level. The sample of 30 bottles has an...
A certain brand of apple juice is supposed to have 64 ounces of juice. The filling...
A certain brand of apple juice is supposed to have 64 ounces of juice. The filling machine is not precise, and the exact amount of juice varies from bottle to bottle. Because the penalty for under filling is severe, the quality control manager wishes to verify the mean amount of juice in each bottle. She takes a random sample of 25 bottles, finding a mean of 63.6 ounces and a standard deviation of 0.8 ounces. The data from the 25...
A certain brand of apple juice is supposed to have 64 ounces of juice. The filling machine is not precise, and the exact amount of juice varies from bottle to bottle.
A certain brand of apple juice is supposed to have 64 ounces of juice. The filling machine is not precise, and the exact amount of juice varies from bottle to bottle. Because the penalty for under filling is severe, the quality control manager wishes to verify the mean amount of juice in each bottle. She takes a random sample of 25 bottles, finding a mean of 63.6 ounces and a standard deviation of 0.8 ounces. The data from the 25...
12. The Crown Bottling Company has installed a new bottling process that will fill 12-ounce bottles...
12. The Crown Bottling Company has installed a new bottling process that will fill 12-ounce bottles of Cola. Both overfilling and underfilling of bottles is undesirable. The company wishes to see whether the mean bottle fill, μ, is equal to the target of 12 ounces. The company samples 43 bottles. The sample mean is 11.91 and the standard deviation is such that σ=0.11. a) Use a hypothesis test, at a 1% level of significance to determine whether the filler should...
Bob the Quality Control Engineer is studying bottles of apple juice produced in Tallula's factory. He...
Bob the Quality Control Engineer is studying bottles of apple juice produced in Tallula's factory. He tests a sample of 169 bottles and finds that the mean volume is 884.05 mL, with a sample standard deviation of 15 ml. He plans on performing a two-tailed test with a significance level of 1% to determine if the population mean volume is 886 mL. Bob will use a P value based on a z-statistic. (a) State the criterion for rejection. [1 mark]...
A soda bottling plant fills cans labeled to contain 12 ounces of soda. The filling machine...
A soda bottling plant fills cans labeled to contain 12 ounces of
soda. The filling machine varies and does not fill each can with
exactly 12 ounces. To determine if the filling machine needs
adjustment, each day the quality control manager measures the
amount of soda per can for a random sample of 50 cans. Experience
shows that its filling machines have a known population standard
deviation of 0.35 ounces.
In today's sample of 50 cans of soda, the sample...
Orange 52. Juice Dispensing Machine A beverage company uses a machine to fill half-gallon bottles with...
Orange 52. Juice Dispensing Machine A beverage company uses a machine to fill half-gallon bottles with fruit juice (see figure). The company wants to estimate the mean volume of water the machine is putting in the bottles within 0.25 fluid Ounce. (a) Determine the minimum sample size required to construct a 95% confidence interval for the population mean. Assume the population standard deviation is 1 fluid Ounce. (b) The sample mean is exactly 64 fluid ounces. With a sample size...
The Crown Bottling Company has just installed a new bottling process that will fill 16-ounce bottles...
The Crown Bottling Company has just installed a new bottling process that will fill 16-ounce bottles of the popular Crown Classic Cola soft drink. Both overfilling and underfilling bottles are undesirable: Underfilling leads to customer complaints and overfilling costs the company considerable money. In order to verify that the filler is set up correctly, the company wishes to see whether the mean bottle fill, μ, is close to the target fill of 16 ounces. To this end, a random sample...
A bottled water distributor wants to estimate the amount of water contained in 11-gallon bottles purchased...
A bottled water distributor wants to estimate the amount of water contained in 11-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 0.04 gallon. A random sample of 50 bottles is selected, and the sample mean amount of water per 11-gallon bottle is 0.981 gallon. Complete parts (a) through (d). a. Construct a 95% confidence interval estimate for the population mean...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each bottle produced is supposed to contain exactly 12 fluid Ounces (fl oz) of juice. Susan decides to test this by randomly sampling 30 filled bottles and carefully measuring the amount of juice inside each. She will recalibrate the machinery if the average amount of juice per bottle differs from 12 fl oz at the 1% significance level. The sample of 30 bottles has an...
4. Susan is in charge of quality control at a small fruit juice bottling plant. Each bottle produced is supposed to contain exactly 12 fluid Ounces (fl oz) of juice. Susan decides to test this by randomly sampling 30 filled bottles and carefully measuring the amount of juice inside each. She will recalibrate the machinery if the average amount of juice per bottle differs from 12 fl oz at the 1% significance level. The sample of 30 bottles has an...
Bob the Quality Control Engineer is studying bottles of apple juice produced in Tallula's factory. He tests a sample of 169 bottles and finds that the mean volume is 884.05 mL, with a sample standard deviation of 15 ml. He plans on performing a two-tailed test with a significance level of 1% to determine if the population mean volume is 886 mL. Bob will use a P value based on a z-statistic. (a) State the criterion for rejection. [1 mark]...
A soda bottling plant fills cans labeled to contain 12 ounces of
soda. The filling machine varies and does not fill each can with
exactly 12 ounces. To determine if the filling machine needs
adjustment, each day the quality control manager measures the
amount of soda per can for a random sample of 50 cans. Experience
shows that its filling machines have a known population standard
deviation of 0.35 ounces.
In today's sample of 50 cans of soda, the sample...
Orange 52. Juice Dispensing Machine A beverage company uses a machine to fill half-gallon bottles with fruit juice (see figure). The company wants to estimate the mean volume of water the machine is putting in the bottles within 0.25 fluid Ounce. (a) Determine the minimum sample size required to construct a 95% confidence interval for the population mean. Assume the population standard deviation is 1 fluid Ounce. (b) The sample mean is exactly 64 fluid ounces. With a sample size...
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