What number is 520% of 150 using proportions
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What number is 520% of 150 using proportions
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SPHS 500 APU Statistics Effect Size Power Correlation Discussion
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provide an example of two variables that are correlated in a strong and positive direction and two that are ...
SPHS 500 APU Statistics Effect Size Power Correlation Discussion
Part 1:
provide an example of two variables that are correlated in a strong and positive direction and two that are correlated in a strong a negative direction. You aren't required to provide a research article to support these relationships but you are welcome to if you chose. Please comment on any other factors that could influence their relationship and what can an cannot be inferred from these correlations. Topics are first-come, first-serve so please select examples that no other classmates have chosen.
Part 2: I need the answers for the questions attach to this post.
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7.3-1. A machine shop manufactures toggle levers. A lever is flawed if a standard nut cannot be screwed onto the threads. Let p equal the proportion of flawed toggle levers that the shop manufactures. If there were 24 flawed levers out of a sample of 642 that were selected randomly from the production line, (a) Give a point estimate of p. (b) Use Equation 7.3-2 to find an approximate 95% confidence interval for p.(c) Use Equation 7.3-4 to find an approximate 95% confidence interval for p.(d) Use Equation 7.3-5 to find an approximate 95% confidence interval for p.(e) Find a one-sided approximate 95% confidence interval for p that provides an upper bound for p.7.3-2. Let p equal the proportion of letters mailed in the Netherlands that are delivered the next day. Suppose that y = 142 out of a random sample of n = 200 letters were delivered the day after they were mailed. (a) Give a point estimate of p. (b) Use Equation 7.3-2 to find an approximate 90% confidence interval for p.(c) Use Equation 7.3-4 to find an approximate 90% confidence interval for p.(d) Use Equation 7.3-5 to find an approximate 90% confidence interval for p.(e) Find a one-sided approximate 90% confidence interval for p that provides a lower bound for p.7.3-6. Let p equal the proportion of Americanswho select jogging as one of their recreational activities. If 1497 out of a random sample of 5757 selected jogging, find an approximate 98% confidence interval for p.7.4-1. Let X equal the tarsus length for a male grackle. (The tarsus is part of a bird’s leg between what appears to be a backward-facing “knee” and what appears to be an “ankle” .) Assume that the distribution of X is N(μ, 4.84). Find the sample size n that is needed so that we are 95% confident that the maximum error of the estimate of μ is 0.4.7.4-2. Let X equal the excess weight of soap in a “1000-gram” bottle. Assume that the distribution of X is N(μ, 169). What sample size is required so that we have 95% confidence that the maximum error of the estimate of μ is 1.5?7.4-3. A company packages powdered soap in “6-pound” boxes. The sample mean and standard deviation of the soap in these boxes are currently 6.09 pounds and 0.02 pound, respectively. If themean fill can be lowered by 0.01 pound, $14,000 would be saved per year. Adjustments were made in the filling equipment, but it can be assumed that the standard deviation remains unchanged. (a) How large a sample is needed so that the maximum error of the estimate of the new μ is ε = 0.001 with 90% confidence?(b) A random sample of size n = 1219 yielded x = 6.048 and s = 0.022. Calculate an approximate 90% confidence interval for μ.(c) Estimate the savings per year with these new adjust-ments.(d) Estimate the proportion of boxes that will now weigh less than six pounds.7.4-9. A die has been loaded to slightly change the prob-ability of rolling a six. In order to estimate p, the new probability of rolling a six, how many times must the die be rolled so that we are approximately 99% confident that themaximumerrorof theestimateof p is ε = 0.02?
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Article Critique, statistics homework help
For this Assignment, you will critically evaluate a scholarly article related to MANOVA.Use the following article t for yo ...
Article Critique, statistics homework help
For this Assignment, you will critically evaluate a scholarly article related to MANOVA.Use the following article t for your critical evaluation assignment: The quality of the outdoor environment influences childrens health—A cross‐sectional study of preschools.Authors: Söderström M; The Section of General Practice, Department of Public Health and The research Unit for General Practice, University of Copenhagen, Copenhagen, Denmark. masod@sund.ku.dk Boldemann C, Sahlin U, Mårtensson F, Raustorp A, & Blennow MSource: Acta Paediatrica (Oslo, Norway: 1992) [Acta Paediatr] 2013 Jan; Vol. 102 (1), pp. 83-91. Date of Electronic Publication: 2012 Nov 03.Write a 2- to 3-page critique of the research article provided and think about the following when you are reading and critiquing the article:Why did the authors select MANOVA in the research?Do you think this test was the most appropriate choice? Why or why not?Did the authors display the results in a figure or table?Does the results table stand alone? In other words, are you able to interpret the study from it? Why or why not?
7 pages
20201111235846week 13 Qoustions
Regress the wage (variable name: wage) on experience (variable name: exper). The Which of the following statements is the ...
20201111235846week 13 Qoustions
Regress the wage (variable name: wage) on experience (variable name: exper). The Which of the following statements is the most correct?
SPHS 500 APU Statistics Effect Size Power Correlation Discussion
Part 1:
provide an example of two variables that are correlated in a strong and positive direction and two that are ...
SPHS 500 APU Statistics Effect Size Power Correlation Discussion
Part 1:
provide an example of two variables that are correlated in a strong and positive direction and two that are correlated in a strong a negative direction. You aren't required to provide a research article to support these relationships but you are welcome to if you chose. Please comment on any other factors that could influence their relationship and what can an cannot be inferred from these correlations. Topics are first-come, first-serve so please select examples that no other classmates have chosen.
Part 2: I need the answers for the questions attach to this post.
Belchertown High School Mathematics for College Readiness Question
The extremes of a proportion are 4 and 14. Which of the following pairs could be the means of the proportion?Answer A. 2 a ...
Belchertown High School Mathematics for College Readiness Question
The extremes of a proportion are 4 and 14. Which of the following pairs could be the means of the proportion?Answer A. 2 and 28Answer B. 5 and 11Answer C. 6 and 9Answer D. 7 and 8
University of Phoenix Quantitative Analysis Reflective Essay
Write a 700- to 1,050-word reflective essay about your experience applying quantitative analysis methods and the knowledg ...
University of Phoenix Quantitative Analysis Reflective Essay
Write a 700- to 1,050-word reflective essay about your experience applying quantitative analysis methods and the knowledge you have gained from this course. This should be a professional paper with citations to support your work.
Topics of each week
five-stage iterative process
graphical representation of data
measures of central tendency. Mean,Median,Mode
Measure of Variation
Normal Distribution. Table Relationships
Sampling Designs
Confidence Intervals. Estimation Errors.
UCLA Machine Shop Manufactures Probability & Statistical Inference Practice
7.3-1. A machine shop manufactures toggle levers. A lever is flawed if a standard nut cannot be screwed onto the threads. ...
UCLA Machine Shop Manufactures Probability & Statistical Inference Practice
7.3-1. A machine shop manufactures toggle levers. A lever is flawed if a standard nut cannot be screwed onto the threads. Let p equal the proportion of flawed toggle levers that the shop manufactures. If there were 24 flawed levers out of a sample of 642 that were selected randomly from the production line, (a) Give a point estimate of p. (b) Use Equation 7.3-2 to find an approximate 95% confidence interval for p.(c) Use Equation 7.3-4 to find an approximate 95% confidence interval for p.(d) Use Equation 7.3-5 to find an approximate 95% confidence interval for p.(e) Find a one-sided approximate 95% confidence interval for p that provides an upper bound for p.7.3-2. Let p equal the proportion of letters mailed in the Netherlands that are delivered the next day. Suppose that y = 142 out of a random sample of n = 200 letters were delivered the day after they were mailed. (a) Give a point estimate of p. (b) Use Equation 7.3-2 to find an approximate 90% confidence interval for p.(c) Use Equation 7.3-4 to find an approximate 90% confidence interval for p.(d) Use Equation 7.3-5 to find an approximate 90% confidence interval for p.(e) Find a one-sided approximate 90% confidence interval for p that provides a lower bound for p.7.3-6. Let p equal the proportion of Americanswho select jogging as one of their recreational activities. If 1497 out of a random sample of 5757 selected jogging, find an approximate 98% confidence interval for p.7.4-1. Let X equal the tarsus length for a male grackle. (The tarsus is part of a bird’s leg between what appears to be a backward-facing “knee” and what appears to be an “ankle” .) Assume that the distribution of X is N(μ, 4.84). Find the sample size n that is needed so that we are 95% confident that the maximum error of the estimate of μ is 0.4.7.4-2. Let X equal the excess weight of soap in a “1000-gram” bottle. Assume that the distribution of X is N(μ, 169). What sample size is required so that we have 95% confidence that the maximum error of the estimate of μ is 1.5?7.4-3. A company packages powdered soap in “6-pound” boxes. The sample mean and standard deviation of the soap in these boxes are currently 6.09 pounds and 0.02 pound, respectively. If themean fill can be lowered by 0.01 pound, $14,000 would be saved per year. Adjustments were made in the filling equipment, but it can be assumed that the standard deviation remains unchanged. (a) How large a sample is needed so that the maximum error of the estimate of the new μ is ε = 0.001 with 90% confidence?(b) A random sample of size n = 1219 yielded x = 6.048 and s = 0.022. Calculate an approximate 90% confidence interval for μ.(c) Estimate the savings per year with these new adjust-ments.(d) Estimate the proportion of boxes that will now weigh less than six pounds.7.4-9. A die has been loaded to slightly change the prob-ability of rolling a six. In order to estimate p, the new probability of rolling a six, how many times must the die be rolled so that we are approximately 99% confident that themaximumerrorof theestimateof p is ε = 0.02?
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