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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 a...
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...
The quality control manager of a soda manufacturing company wishes to use a significant level of...
The quality control manager of a soda manufacturing company wishes to use a significant level of 0.05 to test whether the variabilities in the amount of soda in the company's 16 OZ bottles is more than the variabilities in the company's 12 OZ bottles. The following two samples have been randomly collected. What is the critical value of this hypothesis testing problem? Sample 1 (16 OZ) Sample 2 (12 OZ) 16.012 12.155 16.014 12.072 16.023 11.954 16.11 12.109 15.9 12.051...
2side Hypothesis Testing_03 (two independent sam machines are used for filling plastic battle with a new volume of...
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...
section 10.3 Provided below are summary statistics for independent simple random samples from two populations. Use...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval X = 10,8, +2, ny = 20, X2 = 11,62 = 5, n2 = 20 a. Two-tailed test, 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A. Ho: H=12 Haith Oc. Ho: * HOW 2 B. HeH=2 HHH2...
section 10.3 Provided below are summary statistics for independent simple random samples from two populations. Use...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. *4 = 10,5 - 2, 0, -20, 72 - 11,5 - 5, n2 - 20 a. Two-tailed test, a = 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A HOHH2 H₂H12 Oc. Ho: H = 12 Hai H1...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets. DF Sum Sa Mean Sq F value Pr(>F) feed 5 231129.16 46225.83 15.36 0.0000 residuals 65195556.02 3008.55 Conduct a hypothesis test to...
Problem 2) Should you buy generic rather than brand-name batteries? A statistics student designed a study...
Problem 2) Should you buy generic rather than brand-name batteries? A statistics student designed a study to see if generics perform differently than brand name batteries. He kept a battery-powered CD player continuously playing the same CD, with the volume control fixed at 5, and measured the time until no more music was heard through the headphones. He measured the time in minutes until the sound stopped. The data for 6 randomly selected batteries from a well-known brand and 6...
need help with the last questions. Prothrombin time is a measure of the clotting ability of...
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...
A security part that most 18% of homeowners have a home security and in words and...
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...
Just Need part 4 You will conduct statistical surveys in which you attempt to make a...
Just Need part 4
You will conduct statistical surveys in which you attempt to make a conclusion about multiple population parameters. Here are the project guidelines: You will use the De Anza College student body as your population You must sample at least 50 students, asking them 2 questions Question #1: This will be an average / 1-population question Question #2: This will be a proportion / 2-population question You must work in groups of 1 to 3 people (You...
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...
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...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval X = 10,8, +2, ny = 20, X2 = 11,62 = 5, n2 = 20 a. Two-tailed test, 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A. Ho: H=12 Haith Oc. Ho: * HOW 2 B. HeH=2 HHH2...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. *4 = 10,5 - 2, 0, -20, 72 - 11,5 - 5, n2 - 20 a. Two-tailed test, a = 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A HOHH2 H₂H12 Oc. Ho: H = 12 Hai H1...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets. DF Sum Sa Mean Sq F value Pr(>F) feed 5 231129.16 46225.83 15.36 0.0000 residuals 65195556.02 3008.55 Conduct a hypothesis test to...
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...
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...
Just Need part 4
You will conduct statistical surveys in which you attempt to make a conclusion about multiple population parameters. Here are the project guidelines: You will use the De Anza College student body as your population You must sample at least 50 students, asking them 2 questions Question #1: This will be an average / 1-population question Question #2: This will be a proportion / 2-population question You must work in groups of 1 to 3 people (You...
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