A facility for bottling soda uses two fill and seal machines. As part of quality control,...
A facility for bottling soft drinks uses two fill and seal machines. For quality control purposes, data is collected on these machines to determine if they are filling the soft drinks with the same amount of drink. Based on data from these two machines, they found that a 95% confidence interval for the difference in these machines, population means is (-2.5 mL, 0.3 mL). Using this data, the bottling facility would like to test if there is a difference in...
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...
3. Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The fill volumes on both machines can be assumed to be normally distributed. The quality engineering department suspects that both machines fill to the same net volume, whether or not this volume is 16.0 ounces. An experiment is performed by taking a random sample from the output of each machine Machine 1 Machine 2 16.01 16.03 16.21 16.2 15.85 15.85 16.13 15.82 16.19 16.15...
2side Hypothesis Testing_03 (two independent sam machines are used for filling plastic battle with a new volume of 16.0 ounces. The fill volume can be assumed was with standard deviations d. 0.020 and 0.025 ounces. A member of the quality engineering staff that both machines fill to the same mean net volume, whether or not this volume is 16.0 ounces. random sample of 10 bottles is taken from the output of each machine: Machine 01 16.03 16.01 16.04 15.96 16.05...
The melting points of two alloys used in formulating solder were investigated by melting 21 samples of each material. The sample mean and standard deviation for alloy 1 was 420.48 and 2.34 respectively, and for alloy 2 they were 425 and 2.5 respectively. Do the sample data support the claim that both alloys have the same melting point? Use a fixed-level test with alpha=0.05 and assume that both populations are normally distributed and have the same standard deviation. Provide the...
Quality Associates, Inc., a consulting firm, advises its clients about sampling and statistical procedures that can be used to control their manufacturingprocesses. IN one particular application, a client game quality associates a sample of 800 observations taken during a time in which that client's process wasoperating satisfactorily. The sample standard deviation for there data was .21 ; hence, with so much data, the population standard deviation was assumed to be .21.Quality associates then suggested that random samples of size 30...
need help with the last questions. Prothrombin time is a measure of the clotting ability of blood. For 10 rats treated with an antibiotic and 10 control rats, the prothrombin times (in seconds) were reported as follows: Control Antibiotic 10 25 10 23 sample mean sample standard deviation 10 (a) (3 points) What is the explanatory variable? Is it categorical or quantitative? Explanatory variable is type of treatment and is categorical. (b) (3 points) What is the response variable? Is...
Quality Associates, Inc., a consulting firm, advises its clients about sampling and statistical procedures that can be used to control their manufacturing processes. In one particular application, a client gave Quality Associates a sample of 800 observations taken during a time in which that client’s process was operating satisfactorily. The sample standard deviation for these data was .21; hence, with so much data, the population standard deviation was assumed to be .21. Quality Associates then suggested that random samples of...
A security part that most 18% of homeowners have a home security and in words and in symbols. Then der whether the hypothes for this is whered wealed. Explain your reasoning Suase the hypothesis in words and in symbole Choose the correct answer OA. The null bypothesis expressed in words is, he proportion of a homeowners who own homestymo 10 The rulyphesis is expressed symbolcally, 'H D#0.18. OB. The hypothesis expressed in words is, the proportion of homeowners who can...
A Waist is a Terrible Thing to Mind: The waist circumference of males 20 to 29 years ele is approximately normally distributed, with mean 92.5 cm and standard deviation 13.5 Source: M.A. McDowell. CD. Fryar.R. Hirs for Children and Adults: U.S. Population. 1999-2002. Advance data from vital and health statistics: No. 361. Hyattsville, MD: National Center for Health Statistics, 2005. d CL. Ogden, Anthropometric Reference Data 5. Draw a normal curve with the parameters labeled. 92.5 What proportion of 20-...